266.38% is the change from 229 to 839
Calculation steps:
[( 839 - 229 ) ÷ 229] x 100 = 266.38%
Formula
Percentage change = [(839 - 229) / 229] x 100
Subtract the new number by the original number
839 - 229 = 610
610 ÷ 229 = 2.663755458515284
2.663755458515284 x 100 = 266.38%