-8.3% is the change from 458 to 420
Calculation steps:
[( 420 - 458 ) ÷ 458] x 100 = -8.3%
Formula
Percentage change = [(420 - 458) / 458] x 100
Subtract the new number by the original number
420 - 458 = -38
-38 ÷ 458 = -0.08296943231441048
-0.08296943231441048 x 100 = -8.3%