163.53% is the change from 170 to 448
Calculation steps:
[( 448 - 170 ) ÷ 170] x 100 = 163.53%
Formula
Percentage change = [(448 - 170) / 170] x 100
Subtract the new number by the original number
448 - 170 = 278
278 ÷ 170 = 1.6352941176470588
1.6352941176470588 x 100 = 163.53%