746.15% is the change from 78 to 660
Calculation steps:
[( 660 - 78 ) ÷ 78] x 100 = 746.15%
Formula
Percentage change = [(660 - 78) / 78] x 100
Subtract the new number by the original number
660 - 78 = 582
582 ÷ 78 = 7.461538461538462
7.461538461538462 x 100 = 746.15%