299.38% is the change from 161 to 643
Calculation steps:
[( 643 - 161 ) ÷ 161] x 100 = 299.38%
Formula
Percentage change = [(643 - 161) / 161] x 100
Subtract the new number by the original number
643 - 161 = 482
482 ÷ 161 = 2.9937888198757765
2.9937888198757765 x 100 = 299.38%