-48.19% is the change from 498 to 258
Calculation steps:
[( 258 - 498 ) ÷ 498] x 100 = -48.19%
Formula
Percentage change = [(258 - 498) / 498] x 100
Subtract the new number by the original number
258 - 498 = -240
-240 ÷ 498 = -0.4819277108433735
-0.4819277108433735 x 100 = -48.19%