45.33% is the change from 503 to 731
Calculation steps:
[( 731 - 503 ) ÷ 503] x 100 = 45.33%
Formula
Percentage change = [(731 - 503) / 503] x 100
Subtract the new number by the original number
731 - 503 = 228
228 ÷ 503 = 0.4532803180914513
0.4532803180914513 x 100 = 45.33%