-32.09% is the change from 941 to 639
Calculation steps:
[( 639 - 941 ) ÷ 941] x 100 = -32.09%
Formula
Percentage change = [(639 - 941) / 941] x 100
Subtract the new number by the original number
639 - 941 = -302
-302 ÷ 941 = -0.32093517534537724
-0.32093517534537724 x 100 = -32.09%