-52.81% is the change from 890 to 420
Calculation steps:
[( 420 - 890 ) ÷ 890] x 100 = -52.81%
Formula
Percentage change = [(420 - 890) / 890] x 100
Subtract the new number by the original number
420 - 890 = -470
-470 ÷ 890 = -0.5280898876404494
-0.5280898876404494 x 100 = -52.81%