-9.56% is the change from 387 to 350
Calculation steps:
[( 350 - 387 ) ÷ 387] x 100 = -9.56%
Formula
Percentage change = [(350 - 387) / 387] x 100
Subtract the new number by the original number
350 - 387 = -37
-37 ÷ 387 = -0.09560723514211886
-0.09560723514211886 x 100 = -9.56%