371.43% is the change from 70 to 330
Calculation steps:
[( 330 - 70 ) ÷ 70] x 100 = 371.43%
Formula
Percentage change = [(330 - 70) / 70] x 100
Subtract the new number by the original number
330 - 70 = 260
260 ÷ 70 = 3.7142857142857144
3.7142857142857144 x 100 = 371.43%