256.42% is the change from 257 to 916
Calculation steps:
[( 916 - 257 ) ÷ 257] x 100 = 256.42%
Formula
Percentage change = [(916 - 257) / 257] x 100
Subtract the new number by the original number
916 - 257 = 659
659 ÷ 257 = 2.5642023346303504
2.5642023346303504 x 100 = 256.42%