-86.1% is the change from 331 to 46
Calculation steps:
[( 46 - 331 ) ÷ 331] x 100 = -86.1%
Formula
Percentage change = [(46 - 331) / 331] x 100
Subtract the new number by the original number
46 - 331 = -285
-285 ÷ 331 = -0.8610271903323263
-0.8610271903323263 x 100 = -86.1%