68.23% is the change from 299 to 503
Calculation steps:
[( 503 - 299 ) ÷ 299] x 100 = 68.23%
Formula
Percentage change = [(503 - 299) / 299] x 100
Subtract the new number by the original number
503 - 299 = 204
204 ÷ 299 = 0.6822742474916388
0.6822742474916388 x 100 = 68.23%