-51.8% is the change from 807 to 389
Calculation steps:
[( 389 - 807 ) ÷ 807] x 100 = -51.8%
Formula
Percentage change = [(389 - 807) / 807] x 100
Subtract the new number by the original number
389 - 807 = -418
-418 ÷ 807 = -0.5179677819083024
-0.5179677819083024 x 100 = -51.8%