126.07% is the change from 257 to 581
Calculation steps:
[( 581 - 257 ) ÷ 257] x 100 = 126.07%
Formula
Percentage change = [(581 - 257) / 257] x 100
Subtract the new number by the original number
581 - 257 = 324
324 ÷ 257 = 1.2607003891050583
1.2607003891050583 x 100 = 126.07%