706.49% is the change from 77 to 621
Calculation steps:
[( 621 - 77 ) ÷ 77] x 100 = 706.49%
Formula
Percentage change = [(621 - 77) / 77] x 100
Subtract the new number by the original number
621 - 77 = 544
544 ÷ 77 = 7.064935064935065
7.064935064935065 x 100 = 706.49%