115.95% is the change from 257 to 555
Calculation steps:
[( 555 - 257 ) ÷ 257] x 100 = 115.95%
Formula
Percentage change = [(555 - 257) / 257] x 100
Subtract the new number by the original number
555 - 257 = 298
298 ÷ 257 = 1.1595330739299612
1.1595330739299612 x 100 = 115.95%