756.41% is the change from 78 to 668
Calculation steps:
[( 668 - 78 ) ÷ 78] x 100 = 756.41%
Formula
Percentage change = [(668 - 78) / 78] x 100
Subtract the new number by the original number
668 - 78 = 590
590 ÷ 78 = 7.564102564102564
7.564102564102564 x 100 = 756.41%