756% is the change from 75 to 642
Calculation steps:
[( 642 - 75 ) ÷ 75] x 100 = 756%
Formula
Percentage change = [(642 - 75) / 75] x 100
Subtract the new number by the original number
642 - 75 = 567
567 ÷ 75 = 7.56
7.56 x 100 = 756%
Example