736.36% is the change from 77 to 644
Calculation steps:
[( 644 - 77 ) ÷ 77] x 100 = 736.36%
Formula
Percentage change = [(644 - 77) / 77] x 100
Subtract the new number by the original number
644 - 77 = 567
567 ÷ 77 = 7.363636363636363
7.363636363636363 x 100 = 736.36%
Example