-31.95% is the change from 942 to 641
Calculation steps:
[( 641 - 942 ) ÷ 942] x 100 = -31.95%
Formula
Percentage change = [(641 - 942) / 942] x 100
Subtract the new number by the original number
641 - 942 = -301
-301 ÷ 942 = -0.3195329087048832
-0.3195329087048832 x 100 = -31.95%