219.56% is the change from 271 to 866
Calculation steps:
[( 866 - 271 ) ÷ 271] x 100 = 219.56%
Formula
Percentage change = [(866 - 271) / 271] x 100
Subtract the new number by the original number
866 - 271 = 595
595 ÷ 271 = 2.195571955719557
2.195571955719557 x 100 = 219.56%