-32.73% is the change from 938 to 631
Calculation steps:
[( 631 - 938 ) ÷ 938] x 100 = -32.73%
Formula
Percentage change = [(631 - 938) / 938] x 100
Subtract the new number by the original number
631 - 938 = -307
-307 ÷ 938 = -0.3272921108742004
-0.3272921108742004 x 100 = -32.73%