-7.93% is the change from 391 to 360
Calculation steps:
[( 360 - 391 ) ÷ 391] x 100 = -7.93%
Formula
Percentage change = [(360 - 391) / 391] x 100
Subtract the new number by the original number
360 - 391 = -31
-31 ÷ 391 = -0.0792838874680307
-0.0792838874680307 x 100 = -7.93%