-50.83% is the change from 787 to 387
Calculation steps:
[( 387 - 787 ) ÷ 787] x 100 = -50.83%
Formula
Percentage change = [(387 - 787) / 787] x 100
Subtract the new number by the original number
387 - 787 = -400
-400 ÷ 787 = -0.5082592121982211
-0.5082592121982211 x 100 = -50.83%