-86.26% is the change from 131 to 18
Calculation steps:
[( 18 - 131 ) ÷ 131] x 100 = -86.26%
Formula
Percentage change = [(18 - 131) / 131] x 100
Subtract the new number by the original number
18 - 131 = -113
-113 ÷ 131 = -0.8625954198473282
-0.8625954198473282 x 100 = -86.26%