261.5% is the change from 226 to 817
Calculation steps:
[( 817 - 226 ) ÷ 226] x 100 = 261.5%
Formula
Percentage change = [(817 - 226) / 226] x 100
Subtract the new number by the original number
817 - 226 = 591
591 ÷ 226 = 2.6150442477876106
2.6150442477876106 x 100 = 261.5%