-9.09% is the change from 462 to 420
Calculation steps:
[( 420 - 462 ) ÷ 462] x 100 = -9.09%
Formula
Percentage change = [(420 - 462) / 462] x 100
Subtract the new number by the original number
420 - 462 = -42
-42 ÷ 462 = -0.09090909090909091
-0.09090909090909091 x 100 = -9.09%