694.87% is the change from 78 to 620
Calculation steps:
[( 620 - 78 ) ÷ 78] x 100 = 694.87%
Formula
Percentage change = [(620 - 78) / 78] x 100
Subtract the new number by the original number
620 - 78 = 542
542 ÷ 78 = 6.948717948717949
6.948717948717949 x 100 = 694.87%