268.33% is the change from 221 to 814
Calculation steps:
[( 814 - 221 ) ÷ 221] x 100 = 268.33%
Formula
Percentage change = [(814 - 221) / 221] x 100
Subtract the new number by the original number
814 - 221 = 593
593 ÷ 221 = 2.683257918552036
2.683257918552036 x 100 = 268.33%