-42.84% is the change from 677 to 387
Calculation steps:
[( 387 - 677 ) ÷ 677] x 100 = -42.84%
Formula
Percentage change = [(387 - 677) / 677] x 100
Subtract the new number by the original number
387 - 677 = -290
-290 ÷ 677 = -0.42836041358936483
-0.42836041358936483 x 100 = -42.84%