160% is the change from 170 to 442
Calculation steps:
[( 442 - 170 ) ÷ 170] x 100 = 160%
Formula
Percentage change = [(442 - 170) / 170] x 100
Subtract the new number by the original number
442 - 170 = 272
272 ÷ 170 = 1.6
1.6 x 100 = 160%
Example