36 is decreased to 21. What is the percent of change?

Question

Ill anwer it so wait a minuet :)

Answer 1

SALE PRICE DISCOUNT Percent of change is % of discout and % of mark up (decrease and increase)                                                                                                     1st step: AMOUNT OF CHANGE: 36-21=15.(i think it goes like this).. 36+21=57    2nd step:PROPORTION: 15/36  x/100 (cross multiply 15 with100 then divide that number by 36)Same thing except put in 57 instead of 15                                            

Answer 2

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