478.26% is the change from 69 to 399
Calculation steps:
[( 399 - 69 ) ÷ 69] x 100 = 478.26%
Formula
Percentage change = [(399 - 69) / 69] x 100
Subtract the new number by the original number
399 - 69 = 330
330 ÷ 69 = 4.782608695652174
4.782608695652174 x 100 = 478.26%