31.34% is the change from 619 to 813
Calculation steps:
[( 813 - 619 ) ÷ 619] x 100 = 31.34%
Formula
Percentage change = [(813 - 619) / 619] x 100
Subtract the new number by the original number
813 - 619 = 194
194 ÷ 619 = 0.3134087237479806
0.3134087237479806 x 100 = 31.34%