208.95% is the change from 257 to 794
Calculation steps:
[( 794 - 257 ) ÷ 257] x 100 = 208.95%
Formula
Percentage change = [(794 - 257) / 257] x 100
Subtract the new number by the original number
794 - 257 = 537
537 ÷ 257 = 2.0894941634241246
2.0894941634241246 x 100 = 208.95%