829.73% is the change from 74 to 688
Calculation steps:
[( 688 - 74 ) ÷ 74] x 100 = 829.73%
Formula
Percentage change = [(688 - 74) / 74] x 100
Subtract the new number by the original number
688 - 74 = 614
614 ÷ 74 = 8.297297297297296
8.297297297297296 x 100 = 829.73%