323.61% is the change from 216 to 915
Calculation steps:
[( 915 - 216 ) ÷ 216] x 100 = 323.61%
Formula
Percentage change = [(915 - 216) / 216] x 100
Subtract the new number by the original number
915 - 216 = 699
699 ÷ 216 = 3.236111111111111
3.236111111111111 x 100 = 323.61%