290.12% is the change from 172 to 671
Calculation steps:
[( 671 - 172 ) ÷ 172] x 100 = 290.12%
Formula
Percentage change = [(671 - 172) / 172] x 100
Subtract the new number by the original number
671 - 172 = 499
499 ÷ 172 = 2.9011627906976742
2.9011627906976742 x 100 = 290.12%