349.31% is the change from 217 to 975
Calculation steps:
[( 975 - 217 ) ÷ 217] x 100 = 349.31%
Formula
Percentage change = [(975 - 217) / 217] x 100
Subtract the new number by the original number
975 - 217 = 758
758 ÷ 217 = 3.493087557603687
3.493087557603687 x 100 = 349.31%