-8.94% is the change from 470 to 428
Calculation steps:
[( 428 - 470 ) ÷ 470] x 100 = -8.94%
Formula
Percentage change = [(428 - 470) / 470] x 100
Subtract the new number by the original number
428 - 470 = -42
-42 ÷ 470 = -0.08936170212765958
-0.08936170212765958 x 100 = -8.94%