38.58% is the change from 591 to 819
Calculation steps:
[( 819 - 591 ) ÷ 591] x 100 = 38.58%
Formula
Percentage change = [(819 - 591) / 591] x 100
Subtract the new number by the original number
819 - 591 = 228
228 ÷ 591 = 0.38578680203045684
0.38578680203045684 x 100 = 38.58%