60.7% is the change from 313 to 503
Calculation steps:
[( 503 - 313 ) ÷ 313] x 100 = 60.7%
Formula
Percentage change = [(503 - 313) / 313] x 100
Subtract the new number by the original number
503 - 313 = 190
190 ÷ 313 = 0.6070287539936102
0.6070287539936102 x 100 = 60.7%