103.1% is the change from 258 to 524
Calculation steps:
[( 524 - 258 ) ÷ 258] x 100 = 103.1%
Formula
Percentage change = [(524 - 258) / 258] x 100
Subtract the new number by the original number
524 - 258 = 266
266 ÷ 258 = 1.0310077519379846
1.0310077519379846 x 100 = 103.1%