162.57% is the change from 171 to 449
Calculation steps:
[( 449 - 171 ) ÷ 171] x 100 = 162.57%
Formula
Percentage change = [(449 - 171) / 171] x 100
Subtract the new number by the original number
449 - 171 = 278
278 ÷ 171 = 1.6257309941520468
1.6257309941520468 x 100 = 162.57%