2.45% is the change from 817 to 837
Calculation steps:
[( 837 - 817 ) ÷ 817] x 100 = 2.45%
Formula
Percentage change = [(837 - 817) / 817] x 100
Subtract the new number by the original number
837 - 817 = 20
20 ÷ 817 = 0.02447980416156671
0.02447980416156671 x 100 = 2.45%