-47.99% is the change from 498 to 259
Calculation steps:
[( 259 - 498 ) ÷ 498] x 100 = -47.99%
Formula
Percentage change = [(259 - 498) / 498] x 100
Subtract the new number by the original number
259 - 498 = -239
-239 ÷ 498 = -0.4799196787148594
-0.4799196787148594 x 100 = -47.99%