750% is the change from 10 to 85
Calculation steps:
[( 85 - 10 ) ÷ 10] x 100 = 750%
Formula
Percentage change = [(85 - 10) / 10] x 100
Subtract the new number by the original number
85 - 10 = 75
75 ÷ 10 = 7.5
7.5 x 100 = 750%
Example