-64.16% is the change from 226 to 81
Calculation steps:
[( 81 - 226 ) ÷ 226] x 100 = -64.16%
Formula
Percentage change = [(81 - 226) / 226] x 100
Subtract the new number by the original number
81 - 226 = -145
-145 ÷ 226 = -0.6415929203539823
-0.6415929203539823 x 100 = -64.16%