60.64% is the change from 503 to 808
Calculation steps:
[( 808 - 503 ) ÷ 503] x 100 = 60.64%
Formula
Percentage change = [(808 - 503) / 503] x 100
Subtract the new number by the original number
808 - 503 = 305
305 ÷ 503 = 0.6063618290258449
0.6063618290258449 x 100 = 60.64%