548.57% is the change from 70 to 454
Calculation steps:
[( 454 - 70 ) ÷ 70] x 100 = 548.57%
Formula
Percentage change = [(454 - 70) / 70] x 100
Subtract the new number by the original number
454 - 70 = 384
384 ÷ 70 = 5.485714285714286
5.485714285714286 x 100 = 548.57%