diff --git a/package.json b/package.json
index dc400b8..8779df4 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
     "lodash": "^4.17.21",
     "mobx": "^6.5.0",
     "mobx-react-lite": "^3.4.0",
+    "mobx-utils": "^6.0.5",
     "next": "^12.1.6",
     "next-compose-plugins": "^2.2.1",
     "next-plugin-graphql": "^0.0.2",
diff --git a/stores/calculation/values/hooks.js b/stores/calculation/values/hooks.js
index 1b14e57..54bf7c5 100644
--- a/stores/calculation/values/hooks.js
+++ b/stores/calculation/values/hooks.js
@@ -1,32 +1,20 @@
 /* eslint-disable import/prefer-default-export */
-import { useEffect, useState } from 'react';
 import { useStore } from 'stores/hooks';
 import { useDebouncedCallback } from 'use-debounce';
 
 const DEBOUNCE_DELAY = 350;
 
 export function useValue(valueName) {
-  const [localValue, setLocalValue] = useState();
   const { $calculation } = useStore();
 
-  /** @description subscribe to updates from store */
-  useEffect(() => {
-    const unsubscribe = $calculation.$values.subscribe(valueName, (value) => setLocalValue(value));
-    return unsubscribe;
-  });
+  const storeValue = $calculation.$values.observeValue(valueName);
 
-  const setStoreValue = useDebouncedCallback(
-    (value) => $calculation.$values.setValue(valueName, value),
-    DEBOUNCE_DELAY
-  );
-
-  /** @description set local state value to global store */
-  useEffect(() => {
-    setStoreValue(localValue);
-  }, [localValue, setStoreValue]);
+  const setStoreValue = useDebouncedCallback((value) => {
+    $calculation.$values.setValue(valueName, value);
+  }, DEBOUNCE_DELAY);
 
   return {
-    value: localValue,
-    setValue: (val) => setLocalValue(val),
+    value: storeValue,
+    setValue: setStoreValue,
   };
 }
diff --git a/stores/calculation/values/index.ts b/stores/calculation/values/index.ts
index 2c49170..9da8b43 100644
--- a/stores/calculation/values/index.ts
+++ b/stores/calculation/values/index.ts
@@ -4,33 +4,29 @@
 import type { Elements, ElementsTypes } from 'Components/Calculation/config/map';
 import { getValueName } from 'Components/Calculation/config/map';
 import { makeAutoObservable } from 'mobx';
-import type { Callback } from 'stores/subscribers';
-import SubscribersStore from 'stores/subscribers';
+import { computedFn } from 'mobx-utils';
 import RootStore from '../../root';
 import type { CalculationValues, Values, ValuesTypes } from './types';
 
 export default class ValuesStore {
   root: RootStore;
-  $subscribers: SubscribersStore;
-  #values: CalculationValues = {};
+  values: CalculationValues = {};
 
   constructor(rootStore: RootStore) {
     makeAutoObservable(this);
     this.root = rootStore;
-    this.$subscribers = new SubscribersStore();
   }
 
   hydrate = (initialValues: CalculationValues) => {
-    this.#values = initialValues;
+    this.values = initialValues;
   };
 
-  subscribe = (valueName: Values, callback: Callback) =>
-    this.$subscribers.subscribe({ name: valueName, callback });
-
   getValue<V extends Values>(valueName: V) {
-    return this.#values[valueName];
+    return this.values[valueName];
   }
 
+  observeValue = computedFn((valueName: Values) => this.getValue(valueName));
+
   getValueByElement<E extends Elements>(elementName: E) {
     const valueName = getValueName(elementName);
     return this.getValue(valueName) as ElementsTypes[E] | undefined;
@@ -44,29 +40,26 @@ export default class ValuesStore {
     }, {} as Pick<CalculationValues, typeof valuesNames[number]>);
   }
 
-  setValue<V extends Values>(valueName: V, value: ValuesTypes[V]) {
-    this.#values[valueName] = value;
+  setValue = <V extends Values>(valueName: V, value: ValuesTypes[V]) => {
+    this.values[valueName] = value;
+  };
 
-    /** call subscribers callback */
-    this.$subscribers.runCallback(valueName, value);
-  }
-
-  setValueOfElement<E extends Elements>(elementName: E, value: ElementsTypes[E]) {
+  setValueOfElement = <E extends Elements>(elementName: E, value: ElementsTypes[E]) => {
     const valueName = getValueName(elementName);
     this.setValue(valueName, value);
-  }
+  };
 
-  setValues(values: CalculationValues, settings: { replace?: boolean }) {
-    if (settings?.replace) this.#values = values;
-    this.#values = Object.assign(this.#values, values);
-  }
+  setValues = (values: CalculationValues, settings: { replace?: boolean }) => {
+    if (settings?.replace) this.values = values;
+    this.values = Object.assign(this.values, values);
+  };
 
-  clearValue(valueName: Values) {
+  clearValue = (valueName: Values) => {
     this.setValue(valueName, null);
-  }
+  };
 
-  clearValueOfElement(elementName: Elements) {
+  clearValueOfElement = (elementName: Elements) => {
     const valueName = getValueName(elementName);
     this.clearValue(valueName);
-  }
+  };
 }
diff --git a/stores/subscribers.ts b/stores/subscribers.ts
deleted file mode 100644
index 95f53a7..0000000
--- a/stores/subscribers.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-/* eslint-disable object-curly-newline */
-import { makeAutoObservable } from 'mobx';
-
-export type Callback = (data: any) => void;
-type Subscriber = { name: string; callback: Callback };
-
-export default class SubscribersStore {
-  #subscribers = new Set<Subscriber>();
-
-  constructor() {
-    makeAutoObservable(this);
-  }
-
-  subscribe = (subscriber: Subscriber) => {
-    this.#subscribers.add(subscriber);
-    return () => this.#subscribers.delete(subscriber);
-  };
-
-  runCallback(name: string, data: any) {
-    const callback = Array.from(this.#subscribers).find((x) => x.name === name);
-    if (callback) callback.callback(data);
-  }
-}
diff --git a/yarn.lock b/yarn.lock
index d48b09f..9c25ea0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4029,6 +4029,11 @@ mobx-react-lite@^3.4.0:
   resolved "https://registry.yarnpkg.com/mobx-react-lite/-/mobx-react-lite-3.4.0.tgz#d59156a96889cdadad751e5e4dab95f28926dfff"
   integrity sha512-bRuZp3C0itgLKHu/VNxi66DN/XVkQG7xtoBVWxpvC5FhAqbOCP21+nPhULjnzEqd7xBMybp6KwytdUpZKEgpIQ==
 
+mobx-utils@^6.0.5:
+  version "6.0.5"
+  resolved "https://registry.yarnpkg.com/mobx-utils/-/mobx-utils-6.0.5.tgz#0cce9afb07fbba1fb559f959f8cea1f44baa7252"
+  integrity sha512-QOduwicYedD4mwYZRl8+c3BalljFDcubg+PUGqBkn8tOuBoj2q7GhjXBP6JXM9J+Zh+2mePK8IoToeLfqr3Z/w==
+
 mobx@^6.5.0:
   version "6.5.0"
   resolved "https://registry.yarnpkg.com/mobx/-/mobx-6.5.0.tgz#dc2d028b1882737f6e813fc92454381e438b7ad3"