-57.22% is the change from 180 to 77
Calculation steps:
[( 77 - 180 ) ÷ 180] x 100 = -57.22%
Formula
Percentage change = [(77 - 180) / 180] x 100
Subtract the new number by the original number
77 - 180 = -103
-103 ÷ 180 = -0.5722222222222222
-0.5722222222222222 x 100 = -57.22%