96.12% is the change from 258 to 506
Calculation steps:
[( 506 - 258 ) ÷ 258] x 100 = 96.12%
Formula
Percentage change = [(506 - 258) / 258] x 100
Subtract the new number by the original number
506 - 258 = 248
248 ÷ 258 = 0.9612403100775194
0.9612403100775194 x 100 = 96.12%