-63.54% is the change from 181 to 66
Calculation steps:
[( 66 - 181 ) ÷ 181] x 100 = -63.54%
Formula
Percentage change = [(66 - 181) / 181] x 100
Subtract the new number by the original number
66 - 181 = -115
-115 ÷ 181 = -0.6353591160220995
-0.6353591160220995 x 100 = -63.54%