137.35% is the change from 257 to 610
Calculation steps:
[( 610 - 257 ) ÷ 257] x 100 = 137.35%
Formula
Percentage change = [(610 - 257) / 257] x 100
Subtract the new number by the original number
610 - 257 = 353
353 ÷ 257 = 1.3735408560311284
1.3735408560311284 x 100 = 137.35%