352.94% is the change from 68 to 308
Calculation steps:
[( 308 - 68 ) ÷ 68] x 100 = 352.94%
Formula
Percentage change = [(308 - 68) / 68] x 100
Subtract the new number by the original number
308 - 68 = 240
240 ÷ 68 = 3.5294117647058822
3.5294117647058822 x 100 = 352.94%