72.85% is the change from 291 to 503
Calculation steps:
[( 503 - 291 ) ÷ 291] x 100 = 72.85%
Formula
Percentage change = [(503 - 291) / 291] x 100
Subtract the new number by the original number
503 - 291 = 212
212 ÷ 291 = 0.7285223367697594
0.7285223367697594 x 100 = 72.85%