268.16% is the change from 223 to 821
Calculation steps:
[( 821 - 223 ) ÷ 223] x 100 = 268.16%
Formula
Percentage change = [(821 - 223) / 223] x 100
Subtract the new number by the original number
821 - 223 = 598
598 ÷ 223 = 2.681614349775785
2.681614349775785 x 100 = 268.16%