-44.52% is the change from 146 to 81
Calculation steps:
[( 81 - 146 ) ÷ 146] x 100 = -44.52%
Formula
Percentage change = [(81 - 146) / 146] x 100
Subtract the new number by the original number
81 - 146 = -65
-65 ÷ 146 = -0.4452054794520548
-0.4452054794520548 x 100 = -44.52%