-48.41% is the change from 502 to 259
Calculation steps:
[( 259 - 502 ) ÷ 502] x 100 = -48.41%
Formula
Percentage change = [(259 - 502) / 502] x 100
Subtract the new number by the original number
259 - 502 = -243
-243 ÷ 502 = -0.48406374501992033
-0.48406374501992033 x 100 = -48.41%