8.78% is the change from 843 to 917
Calculation steps:
[( 917 - 843 ) ÷ 843] x 100 = 8.78%
Formula
Percentage change = [(917 - 843) / 843] x 100
Subtract the new number by the original number
917 - 843 = 74
74 ÷ 843 = 0.08778173190984578
0.08778173190984578 x 100 = 8.78%