-14.73% is the change from 387 to 330
Calculation steps:
[( 330 - 387 ) ÷ 387] x 100 = -14.73%
Formula
Percentage change = [(330 - 387) / 387] x 100
Subtract the new number by the original number
330 - 387 = -57
-57 ÷ 387 = -0.14728682170542637
-0.14728682170542637 x 100 = -14.73%