-87.62% is the change from 622 to 77
Calculation steps:
[( 77 - 622 ) ÷ 622] x 100 = -87.62%
Formula
Percentage change = [(77 - 622) / 622] x 100
Subtract the new number by the original number
77 - 622 = -545
-545 ÷ 622 = -0.8762057877813505
-0.8762057877813505 x 100 = -87.62%