1.73% is the change from 980 to 997
Calculation steps:
[( 997 - 980 ) ÷ 980] x 100 = 1.73%
Formula
Percentage change = [(997 - 980) / 980] x 100
Subtract the new number by the original number
997 - 980 = 17
17 ÷ 980 = 0.017346938775510204
0.017346938775510204 x 100 = 1.73%