290.09% is the change from 222 to 866
Calculation steps:
[( 866 - 222 ) ÷ 222] x 100 = 290.09%
Formula
Percentage change = [(866 - 222) / 222] x 100
Subtract the new number by the original number
866 - 222 = 644
644 ÷ 222 = 2.900900900900901
2.900900900900901 x 100 = 290.09%