-14.57% is the change from 501 to 428
Calculation steps:
[( 428 - 501 ) ÷ 501] x 100 = -14.57%
Formula
Percentage change = [(428 - 501) / 501] x 100
Subtract the new number by the original number
428 - 501 = -73
-73 ÷ 501 = -0.14570858283433133
-0.14570858283433133 x 100 = -14.57%