diff --git a/src/client/Elements/InputNumber.jsx b/src/client/Elements/InputNumber.jsx
index 9312e51..f3b1334 100644
--- a/src/client/Elements/InputNumber.jsx
+++ b/src/client/Elements/InputNumber.jsx
@@ -14,11 +14,15 @@ const InputNumber = ({
     <Form.Item validateStatus={validateStatus} help={message}>
       <AntInputNumber
         {...props}
+        parser={value => {
+          if (value === '') {
+            return 0;
+          }
+          return value.replace(/[^0-9.,]+/, '');
+        }}
         disabled={status === ElementStatus.Disabled}
         style={styles}
-        onChange={value => {
-          setCurrentValue(typeof value !== 'string' ? value : 0);
-        }}
+        onChange={value => setCurrentValue(value)}
         value={value}
       />
     </Form.Item>
diff --git a/src/client/stores/CalculationStore/Effects/actions/calculate/validate.ts b/src/client/stores/CalculationStore/Effects/actions/calculate/validate.ts
index f575f9e..cd562dd 100644
--- a/src/client/stores/CalculationStore/Effects/actions/calculate/validate.ts
+++ b/src/client/stores/CalculationStore/Effects/actions/calculate/validate.ts
@@ -1,9 +1,10 @@
+import { toJS } from 'mobx';
 import { elementsValues } from 'client/Containers/Calculation/lib/elements/values';
 import { TElements } from 'core/types/Calculation/Store/elements';
 import CalculationStore from '../../..';
 
 const VALIDATIONS = {
-  IS_NULL: valueName => !CalculationStore.getValue(valueName),
+  IS_NULL: valueName => CalculationStore.getValue(valueName) === undefined,
   LESS_ZERO: valueName => CalculationStore.getValue(valueName) < 0,
   LESS_OR_EQUALS_ZERO: valueName => CalculationStore.getValue(valueName) <= 0,
 };
@@ -26,9 +27,11 @@ const elementsValidations: TElements<any> = {
   selectLeaseObjectCategory: VALIDATIONS.IS_NULL,
   tbxLeasingPeriod: valueName => CalculationStore.getValue(valueName) < 7,
   tbxLeaseObjectPrice: VALIDATIONS.LESS_OR_EQUALS_ZERO,
-  tbxLastPaymentPerc: VALIDATIONS.LESS_OR_EQUALS_ZERO,
-  tbxFirstPaymentPerc: VALIDATIONS.LESS_ZERO,
-  tbxLeaseObjectCount: VALIDATIONS.LESS_ZERO,
+  tbxLastPaymentPerc: VALIDATIONS.IS_NULL,
+  tbxLastPaymentRub: VALIDATIONS.IS_NULL,
+  tbxFirstPaymentPerc: VALIDATIONS.IS_NULL,
+  tbxFirstPaymentRub: VALIDATIONS.IS_NULL,
+  tbxLeaseObjectCount: VALIDATIONS.LESS_OR_EQUALS_ZERO,
 };
 
 const validateElement = (elementName, condition) => {
@@ -83,6 +86,7 @@ const validateTables = () => {
 };
 
 export default () => {
+  const v = toJS(CalculationStore.values);
   validateElements();
   validateTables();
 };