# Can you help me create this ATM simulator app?

**URL:** <https://community.thunkable.com/t/can-you-help-me-create-this-atm-simulator-app/2601214>\
**Category:** Questions about Thunkable X\
**Tags:** beginner, project\
**Created:** [September 18, 2023, 11:07am UTC](https://community.thunkable.com/t/can-you-help-me-create-this-atm-simulator-app/2601214 "2023-09-18T11:07:55Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\
**Post date:** [September 18, 2023, 2:03pm UTC](https://community.thunkable.com/t/can-you-help-me-create-this-atm-simulator-app/2601214/2 "2023-09-18T14:03:19Z")

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The problem is that you are using a “change by” block when you should be using a “set” block.

“Change by” means add this to the existing amount. So you are adding 1+1 to 1 to get 3. Then adding 3+1 to 3 to get 7, etc.

Another option is to change by only app variable deposit.

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