773.68% is the change from 76 to 664
Calculation steps:
[( 664 - 76 ) ÷ 76] x 100 = 773.68%
Formula
Percentage change = [(664 - 76) / 76] x 100
Subtract the new number by the original number
664 - 76 = 588
588 ÷ 76 = 7.7368421052631575
7.7368421052631575 x 100 = 773.68%