Noahal
Answered

Explain why a change from 20 to 40 is a 100 percent increase,but a change from 40 to 20 is a 50 percent decrease

Answer :

40 = 2 times 20

20 = 40/2
flynn705
You are multiplying all of 20 which is 100% and your dividing only half of 40 which is 50%

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