-43.14% is the change from 503 to 286
Calculation steps:
[( 286 - 503 ) ÷ 503] x 100 = -43.14%
Formula
Percentage change = [(286 - 503) / 503] x 100
Subtract the new number by the original number
286 - 503 = -217
-217 ÷ 503 = -0.43141153081510936
-0.43141153081510936 x 100 = -43.14%