-80.39% is the change from 413 to 81
Calculation steps:
[( 81 - 413 ) ÷ 413] x 100 = -80.39%
Formula
Percentage change = [(81 - 413) / 413] x 100
Subtract the new number by the original number
81 - 413 = -332
-332 ÷ 413 = -0.8038740920096852
-0.8038740920096852 x 100 = -80.39%