2.78% is the change from 971 to 998
Calculation steps:
[( 998 - 971 ) ÷ 971] x 100 = 2.78%
Formula
Percentage change = [(998 - 971) / 971] x 100
Subtract the new number by the original number
998 - 971 = 27
27 ÷ 971 = 0.027806385169927908
0.027806385169927908 x 100 = 2.78%