3.43% is the change from 817 to 845
Calculation steps:
[( 845 - 817 ) ÷ 817] x 100 = 3.43%
Formula
Percentage change = [(845 - 817) / 817] x 100
Subtract the new number by the original number
845 - 817 = 28
28 ÷ 817 = 0.03427172582619339
0.03427172582619339 x 100 = 3.43%