196.89% is the change from 257 to 763
Calculation steps:
[( 763 - 257 ) ÷ 257] x 100 = 196.89%
Formula
Percentage change = [(763 - 257) / 257] x 100
Subtract the new number by the original number
763 - 257 = 506
506 ÷ 257 = 1.9688715953307394
1.9688715953307394 x 100 = 196.89%