293.53% is the change from 170 to 669
Calculation steps:
[( 669 - 170 ) ÷ 170] x 100 = 293.53%
Formula
Percentage change = [(669 - 170) / 170] x 100
Subtract the new number by the original number
669 - 170 = 499
499 ÷ 170 = 2.9352941176470586
2.9352941176470586 x 100 = 293.53%