191.44% is the change from 257 to 749
Calculation steps:
[( 749 - 257 ) ÷ 257] x 100 = 191.44%
Formula
Percentage change = [(749 - 257) / 257] x 100
Subtract the new number by the original number
749 - 257 = 492
492 ÷ 257 = 1.9143968871595332
1.9143968871595332 x 100 = 191.44%