-43.48% is the change from 506 to 286
Calculation steps:
[( 286 - 506 ) ÷ 506] x 100 = -43.48%
Formula
Percentage change = [(286 - 506) / 506] x 100
Subtract the new number by the original number
286 - 506 = -220
-220 ÷ 506 = -0.43478260869565216
-0.43478260869565216 x 100 = -43.48%