291.28% is the change from 172 to 673
Calculation steps:
[( 673 - 172 ) ÷ 172] x 100 = 291.28%
Formula
Percentage change = [(673 - 172) / 172] x 100
Subtract the new number by the original number
673 - 172 = 501
501 ÷ 172 = 2.9127906976744184
2.9127906976744184 x 100 = 291.28%