SOLUTION: If I am supposed to knit 7.5 rows per every inch, but I only knit 6.2, by what percentage to I decrease the numbers in a pattern based on 7.5 rows an inch?

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Question 207745: If I am supposed to knit 7.5 rows per every inch, but I only knit 6.2, by what percentage to I decrease the numbers in a pattern based on 7.5 rows an inch?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
17%
6.2/7.5 gives the amount of prodution, subtract the 83% from 100% to fin the decrease.