Hello
I can't solve this mathematics problem:
What I want: For producing these products, In 2018 X method was in use; in 2019 Y method in use. How many products I saved from being defect with the new method.
Probably, I put dumbly thought formulas at these cells: H3, H4, H9. Why I get 243 instead of 220? Which steps can give me 220?
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