661.54% is the change from 78 to 594
Calculation steps:
[( 594 - 78 ) ÷ 78] x 100 = 661.54%
Formula
Percentage change = [(594 - 78) / 78] x 100
Subtract the new number by the original number
594 - 78 = 516
516 ÷ 78 = 6.615384615384615
6.615384615384615 x 100 = 661.54%