370% is the change from 70 to 329
Calculation steps:
[( 329 - 70 ) ÷ 70] x 100 = 370%
Formula
Percentage change = [(329 - 70) / 70] x 100
Subtract the new number by the original number
329 - 70 = 259
259 ÷ 70 = 3.7
3.7 x 100 = 370%
Example