297.7% is the change from 217 to 863
Calculation steps:
[( 863 - 217 ) ÷ 217] x 100 = 297.7%
Formula
Percentage change = [(863 - 217) / 217] x 100
Subtract the new number by the original number
863 - 217 = 646
646 ÷ 217 = 2.9769585253456223
2.9769585253456223 x 100 = 297.7%