761.33% is the change from 75 to 646
Calculation steps:
[( 646 - 75 ) ÷ 75] x 100 = 761.33%
Formula
Percentage change = [(646 - 75) / 75] x 100
Subtract the new number by the original number
646 - 75 = 571
571 ÷ 75 = 7.613333333333333
7.613333333333333 x 100 = 761.33%