-4.91% is the change from 428 to 407
Calculation steps:
[( 407 - 428 ) ÷ 428] x 100 = -4.91%
Formula
Percentage change = [(407 - 428) / 428] x 100
Subtract the new number by the original number
407 - 428 = -21
-21 ÷ 428 = -0.04906542056074766
-0.04906542056074766 x 100 = -4.91%