13.03% is the change from 445 to 503
Calculation steps:
[( 503 - 445 ) ÷ 445] x 100 = 13.03%
Formula
Percentage change = [(503 - 445) / 445] x 100
Subtract the new number by the original number
503 - 445 = 58
58 ÷ 445 = 0.1303370786516854
0.1303370786516854 x 100 = 13.03%