# Increase the number with FORMATER

Userlevel 1
• Beginner

Hello Goodnight. I have a question, I am using the FORMATER but I am not managing to do something. I have numbers from 1 to 4. I want each zapier to increase the number. If the previous one was 1, the next zapier, it will be 2. Until it reaches 4. Then it returns to 1 again. How could I do it? :) Thank you

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Best answer by ikbelkirasan 8 May 2021, 01:26

@rafaelzarro - This can be solved easily with a JavaScript code step.

``const currentNumber = Number(inputData.number);const maxNumber = Number(inputData.maxNumber);const nextNumber = (currentNumber % maxNumber) + 1;return [{ nextNumber }];``

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### 2 replies

Userlevel 7
+11

@rafaelzarro - This can be solved easily with a JavaScript code step.

``const currentNumber = Number(inputData.number);const maxNumber = Number(inputData.maxNumber);const nextNumber = (currentNumber % maxNumber) + 1;return [{ nextNumber }];``

Userlevel 1

Ohhh really thank you very much !!!! amazing