-65.24% is the change from 233 to 81
Calculation steps:
[( 81 - 233 ) ÷ 233] x 100 = -65.24%
Formula
Percentage change = [(81 - 233) / 233] x 100
Subtract the new number by the original number
81 - 233 = -152
-152 ÷ 233 = -0.6523605150214592
-0.6523605150214592 x 100 = -65.24%