Summing two data in google sheets

[i2eeearthhero7po95]

Hi, I am summing two datas (two different columns) in my google sheets to calculate the cumulative value. But somehow, when i sum both values, the cumulative value always display NaN . Please help me T_T

[tatiang]

Hi and welcome to Thunkable. You have not provided enough information. We have no idea how you are trying to calculate the values. Please click the “How to ask great questions” link below.

Also consider that an easy way to do this is to sum the values in Google Sheets and just get the sum cell within Thunkable.

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[i2eeearthhero7po95]

I want to calculate the cumulative of my carbon footprint. But ‘NaN’ appears on my data sheets. I even already change the data to string. Please help me juseyo.