317.51% is the change from 217 to 906
Calculation steps:
[( 906 - 217 ) ÷ 217] x 100 = 317.51%
Formula
Percentage change = [(906 - 217) / 217] x 100
Subtract the new number by the original number
906 - 217 = 689
689 ÷ 217 = 3.175115207373272
3.175115207373272 x 100 = 317.51%