279.26% is the change from 217 to 823
Calculation steps:
[( 823 - 217 ) ÷ 217] x 100 = 279.26%
Formula
Percentage change = [(823 - 217) / 217] x 100
Subtract the new number by the original number
823 - 217 = 606
606 ÷ 217 = 2.792626728110599
2.792626728110599 x 100 = 279.26%