-14.6% is the change from 500 to 427
Calculation steps:
[( 427 - 500 ) ÷ 500] x 100 = -14.6%
Formula
Percentage change = [(427 - 500) / 500] x 100
Subtract the new number by the original number
427 - 500 = -73
-73 ÷ 500 = -0.146
-0.146 x 100 = -14.6%