758.97% is the change from 78 to 670
Calculation steps:
[( 670 - 78 ) ÷ 78] x 100 = 758.97%
Formula
Percentage change = [(670 - 78) / 78] x 100
Subtract the new number by the original number
670 - 78 = 592
592 ÷ 78 = 7.589743589743589
7.589743589743589 x 100 = 758.97%