311.76% is the change from 170 to 700
Calculation steps:
[( 700 - 170 ) ÷ 170] x 100 = 311.76%
Formula
Percentage change = [(700 - 170) / 170] x 100
Subtract the new number by the original number
700 - 170 = 530
530 ÷ 170 = 3.1176470588235294
3.1176470588235294 x 100 = 311.76%