diff --git a/src/app/asset-calculator/asset-calculator.component.ts b/src/app/asset-calculator/asset-calculator.component.ts
index c7d1e77..b502832 100644
--- a/src/app/asset-calculator/asset-calculator.component.ts
+++ b/src/app/asset-calculator/asset-calculator.component.ts
@@ -2,7 +2,7 @@ import {Component, OnInit } from '@angular/core';
 import {FormsModule} from '@angular/forms';
 import {CurrencyPipe,DecimalPipe,PercentPipe} from '@angular/common';
 import {AssetsModule} from './assets/assets.module'
-import {Asset, Positions, AssetPlanPosition } from './assets/asset';
+import {Asset, Positions, AssetPlanPosition, TypeDepreciation } from './assets/asset';
 import {AssetService} from './assets/service/asset.service'
 
 @Component({
@@ -37,6 +37,7 @@ import {AssetService} from './assets/service/asset.service'
 						[ngModel]="asset.year  "
 						(ngModelChange)="asset.year=$event;calculate()" 
 						/>
+						
                     	<input type="number" id="month" name="month" 
 						[ngModel]="asset.month"   
 						(ngModelChange)="asset.month=$event;calculate()" 
@@ -46,17 +47,21 @@ import {AssetService} from './assets/service/asset.service'
 	            </tr>
 	            <tr>
 	                <td>Metoda amortyzacji</td>
-	                <td><select onchange="hideWskaznik()" id="rodzajAmortyzacji" name="metodaAmortyzacji" >
-	                        <option value="0" selected="selected" 
-	                        >Liniowa</option>
-	                        <option value="1" 
-	                        >Dygresywna</option>
-	                </select></td>
-	                <td id="wskaznik" style="display: block">
-	                <input type="text" id="factor" name="factor" 
-                    [ngModel]="asset.factorValue | number:'1.2-2' "
-                    (ngModelChange)="asset.factorValue=$event"/>
-                </td>
+	                <td><select [ngModel]=asset.type
+					            (ngModelChange)="asset.type=$event;calculate() ">
+	                        <option [ngValue]="TypeDepreciation.linear" selected="selected">Liniowa</option>
+	                        <option [ngValue]="TypeDepreciation.digressive" >Dygresywna</option>
+	                	</select>
+				    </td>
+
+					@if( TypeDepreciation.digressive === asset.type  ){
+						<td id="wskaznik" style="display: block">
+						<input type="text" id="factor" name="factor" 
+						[ngModel]="asset.factorValue | number:'1.2-2' "
+						(ngModelChange)="asset.factorValue=$event;calculate()"/>
+						</td>
+					}
+              
 	            </tr>
 				<input class="btn btn-primary" name="calculate"   (click)=calculate()   type="button" value="Wylicz ">
 
@@ -79,8 +84,8 @@ import {AssetService} from './assets/service/asset.service'
 							<tr [class]="clazz(position)" >
 					
 								<th scope="row">{{$index+1}}</th>
-								<td>{{position.when.year}}</td>
-								<td>{{position.when.month}}</td>
+								<td>{{ position.when.year }}</td>
+								<td>{{ position.when.month }}</td>
 								<td>{{ position.calculatedDepreciation | number:'1.2-2' }}</td>
 								<td>{{ position.sum | number:'1.2-2' }}</td>
 							</tr>	
@@ -97,7 +102,7 @@ export class AssetCalculatorComponent implements OnInit{
 
     }
 
-
+	TypeDepreciation = TypeDepreciation;
     asset = new Asset();
 	positions = new Positions();
 
@@ -115,6 +120,7 @@ export class AssetCalculatorComponent implements OnInit{
 	}
 
     clazz(pos : AssetPlanPosition ){
+	
         return pos.when.year % 2 === 0 ? "table-light" : "table-dark";
     }
 
diff --git a/src/app/asset-calculator/assets/asset.ts b/src/app/asset-calculator/assets/asset.ts
index c6138d9..51844ba 100644
--- a/src/app/asset-calculator/assets/asset.ts
+++ b/src/app/asset-calculator/assets/asset.ts
@@ -1,8 +1,16 @@
+
+export enum TypeDepreciation{
+    linear, digressive
+}
+
 export class Asset {
     initialValueAsset        = 2000;
-    depreciationRate         = 20;
+    
     year                     = 2024;
     month                    = 10;
+
+    type                     = TypeDepreciation.linear;
+    depreciationRate         = 20;
     factorValue              = 2;
 }
 
diff --git a/src/app/asset-calculator/assets/service/asset.service.ts b/src/app/asset-calculator/assets/service/asset.service.ts
index 807f986..f736483 100644
--- a/src/app/asset-calculator/assets/service/asset.service.ts
+++ b/src/app/asset-calculator/assets/service/asset.service.ts
@@ -6,6 +6,7 @@ import { Observable } from 'rxjs';
 
 
 let assetUrl: string ='https://api.arti24.eu/rest-api/assets/calculate';
+//let assetUrl: string ='http://localhost:8801/rest-api/assets/calculate';
 
 
 @Injectable({