29.42% is the change from 503 to 651
Calculation steps:
[( 651 - 503 ) ÷ 503] x 100 = 29.42%
Formula
Percentage change = [(651 - 503) / 503] x 100
Subtract the new number by the original number
651 - 503 = 148
148 ÷ 503 = 0.294234592445328
0.294234592445328 x 100 = 29.42%