-80.93% is the change from 687 to 131
Calculation steps:
[( 131 - 687 ) ÷ 687] x 100 = -80.93%
Formula
Percentage change = [(131 - 687) / 687] x 100
Subtract the new number by the original number
131 - 687 = -556
-556 ÷ 687 = -0.8093158660844251
-0.8093158660844251 x 100 = -80.93%