272.83% is the change from 173 to 645
Calculation steps:
[( 645 - 173 ) ÷ 173] x 100 = 272.83%
Formula
Percentage change = [(645 - 173) / 173] x 100
Subtract the new number by the original number
645 - 173 = 472
472 ÷ 173 = 2.7283236994219653
2.7283236994219653 x 100 = 272.83%