272.2% is the change from 223 to 830
Calculation steps:
[( 830 - 223 ) ÷ 223] x 100 = 272.2%
Formula
Percentage change = [(830 - 223) / 223] x 100
Subtract the new number by the original number
830 - 223 = 607
607 ÷ 223 = 2.7219730941704037
2.7219730941704037 x 100 = 272.2%