323.72% is the change from 215 to 911
Calculation steps:
[( 911 - 215 ) ÷ 215] x 100 = 323.72%
Formula
Percentage change = [(911 - 215) / 215] x 100
Subtract the new number by the original number
911 - 215 = 696
696 ÷ 215 = 3.2372093023255815
3.2372093023255815 x 100 = 323.72%