-31.82% is the change from 946 to 645
Calculation steps:
[( 645 - 946 ) ÷ 946] x 100 = -31.82%
Formula
Percentage change = [(645 - 946) / 946] x 100
Subtract the new number by the original number
645 - 946 = -301
-301 ÷ 946 = -0.3181818181818182
-0.3181818181818182 x 100 = -31.82%