-86.47% is the change from 133 to 18
Calculation steps:
[( 18 - 133 ) ÷ 133] x 100 = -86.47%
Formula
Percentage change = [(18 - 133) / 133] x 100
Subtract the new number by the original number
18 - 133 = -115
-115 ÷ 133 = -0.8646616541353384
-0.8646616541353384 x 100 = -86.47%