473.53% is the change from 68 to 390
Calculation steps:
[( 390 - 68 ) ÷ 68] x 100 = 473.53%
Formula
Percentage change = [(390 - 68) / 68] x 100
Subtract the new number by the original number
390 - 68 = 322
322 ÷ 68 = 4.735294117647059
4.735294117647059 x 100 = 473.53%