210.89% is the change from 257 to 799
Calculation steps:
[( 799 - 257 ) ÷ 257] x 100 = 210.89%
Formula
Percentage change = [(799 - 257) / 257] x 100
Subtract the new number by the original number
799 - 257 = 542
542 ÷ 257 = 2.1089494163424125
2.1089494163424125 x 100 = 210.89%