199.4% is the change from 168 to 503
Calculation steps:
[( 503 - 168 ) ÷ 168] x 100 = 199.4%
Formula
Percentage change = [(503 - 168) / 168] x 100
Subtract the new number by the original number
503 - 168 = 335
335 ÷ 168 = 1.994047619047619
1.994047619047619 x 100 = 199.4%