170.48% is the change from 166 to 449
Calculation steps:
[( 449 - 166 ) ÷ 166] x 100 = 170.48%
Formula
Percentage change = [(449 - 166) / 166] x 100
Subtract the new number by the original number
449 - 166 = 283
283 ÷ 166 = 1.7048192771084338
1.7048192771084338 x 100 = 170.48%