-53.64% is the change from 906 to 420
Calculation steps:
[( 420 - 906 ) ÷ 906] x 100 = -53.64%
Formula
Percentage change = [(420 - 906) / 906] x 100
Subtract the new number by the original number
420 - 906 = -486
-486 ÷ 906 = -0.5364238410596026
-0.5364238410596026 x 100 = -53.64%