272.37% is the change from 257 to 957
Calculation steps:
[( 957 - 257 ) ÷ 257] x 100 = 272.37%
Formula
Percentage change = [(957 - 257) / 257] x 100
Subtract the new number by the original number
957 - 257 = 700
700 ÷ 257 = 2.7237354085603114
2.7237354085603114 x 100 = 272.37%