161.76% is the change from 170 to 445
Calculation steps:
[( 445 - 170 ) ÷ 170] x 100 = 161.76%
Formula
Percentage change = [(445 - 170) / 170] x 100
Subtract the new number by the original number
445 - 170 = 275
275 ÷ 170 = 1.6176470588235294
1.6176470588235294 x 100 = 161.76%