271.68% is the change from 173 to 643
Calculation steps:
[( 643 - 173 ) ÷ 173] x 100 = 271.68%
Formula
Percentage change = [(643 - 173) / 173] x 100
Subtract the new number by the original number
643 - 173 = 470
470 ÷ 173 = 2.7167630057803467
2.7167630057803467 x 100 = 271.68%