-47.89% is the change from 497 to 259
Calculation steps:
[( 259 - 497 ) ÷ 497] x 100 = -47.89%
Formula
Percentage change = [(259 - 497) / 497] x 100
Subtract the new number by the original number
259 - 497 = -238
-238 ÷ 497 = -0.4788732394366197
-0.4788732394366197 x 100 = -47.89%