-6.55% is the change from 458 to 428
Calculation steps:
[( 428 - 458 ) ÷ 458] x 100 = -6.55%
Formula
Percentage change = [(428 - 458) / 458] x 100
Subtract the new number by the original number
428 - 458 = -30
-30 ÷ 458 = -0.06550218340611354
-0.06550218340611354 x 100 = -6.55%