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AmazingMc
B. because 100% of 10 is 10, u have 60 which is 6 times that, so 100%*6 which = 600%
but it's the change, not just that, and the change is 50, so 500%
apologiabiology
percent means parts out of 100
x%=x/100


find change
10 to 60=50    (60-10=50)

percent change=change/originla
original=10
change=50
50/10=x%
5/1=x/100
multiply both sides by 100
500=x

answer is 500%