448.57% is the change from 70 to 384
Calculation steps:
[( 384 - 70 ) ÷ 70] x 100 = 448.57%
Formula
Percentage change = [(384 - 70) / 70] x 100
Subtract the new number by the original number
384 - 70 = 314
314 ÷ 70 = 4.485714285714286
4.485714285714286 x 100 = 448.57%