-91.16% is the change from 181 to 16
Calculation steps:
[( 16 - 181 ) ÷ 181] x 100 = -91.16%
Formula
Percentage change = [(16 - 181) / 181] x 100
Subtract the new number by the original number
16 - 181 = -165
-165 ÷ 181 = -0.9116022099447514
-0.9116022099447514 x 100 = -91.16%