115.6% is the change from 250 to 539
Calculation steps:
[( 539 - 250 ) ÷ 250] x 100 = 115.6%
Formula
Percentage change = [(539 - 250) / 250] x 100
Subtract the new number by the original number
539 - 250 = 289
289 ÷ 250 = 1.156
1.156 x 100 = 115.6%
Example