189.47% is the change from 171 to 495
Calculation steps:
[( 495 - 171 ) ÷ 171] x 100 = 189.47%
Formula
Percentage change = [(495 - 171) / 171] x 100
Subtract the new number by the original number
495 - 171 = 324
324 ÷ 171 = 1.894736842105263
1.894736842105263 x 100 = 189.47%