-30.6% is the change from 938 to 651
Calculation steps:
[( 651 - 938 ) ÷ 938] x 100 = -30.6%
Formula
Percentage change = [(651 - 938) / 938] x 100
Subtract the new number by the original number
651 - 938 = -287
-287 ÷ 938 = -0.30597014925373134
-0.30597014925373134 x 100 = -30.6%