91.47% is the change from 258 to 494
Calculation steps:
[( 494 - 258 ) ÷ 258] x 100 = 91.47%
Formula
Percentage change = [(494 - 258) / 258] x 100
Subtract the new number by the original number
494 - 258 = 236
236 ÷ 258 = 0.9147286821705426
0.9147286821705426 x 100 = 91.47%