337.5% is the change from 8 to 35
Calculation steps:
[( 35 - 8 ) ÷ 8] x 100 = 337.5%
Formula
Percentage change = [(35 - 8) / 8] x 100
Subtract the new number by the original number
35 - 8 = 27
27 ÷ 8 = 3.375
3.375 x 100 = 337.5%
Example