497.14% is the change from 70 to 418
Calculation steps:
[( 418 - 70 ) ÷ 70] x 100 = 497.14%
Formula
Percentage change = [(418 - 70) / 70] x 100
Subtract the new number by the original number
418 - 70 = 348
348 ÷ 70 = 4.9714285714285715
4.9714285714285715 x 100 = 497.14%