-41.22% is the change from 131 to 77
Calculation steps:
[( 77 - 131 ) ÷ 131] x 100 = -41.22%
Formula
Percentage change = [(77 - 131) / 131] x 100
Subtract the new number by the original number
77 - 131 = -54
-54 ÷ 131 = -0.4122137404580153
-0.4122137404580153 x 100 = -41.22%