787.8% is the change from 82 to 728
Calculation steps:
[( 728 - 82 ) ÷ 82] x 100 = 787.8%
Formula
Percentage change = [(728 - 82) / 82] x 100
Subtract the new number by the original number
728 - 82 = 646
646 ÷ 82 = 7.878048780487805
7.878048780487805 x 100 = 787.8%