-51.28% is the change from 862 to 420
Calculation steps:
[( 420 - 862 ) ÷ 862] x 100 = -51.28%
Formula
Percentage change = [(420 - 862) / 862] x 100
Subtract the new number by the original number
420 - 862 = -442
-442 ÷ 862 = -0.5127610208816705
-0.5127610208816705 x 100 = -51.28%