-32.27% is the change from 942 to 638
Calculation steps:
[( 638 - 942 ) ÷ 942] x 100 = -32.27%
Formula
Percentage change = [(638 - 942) / 942] x 100
Subtract the new number by the original number
638 - 942 = -304
-304 ÷ 942 = -0.3227176220806794
-0.3227176220806794 x 100 = -32.27%