-2.71% is the change from 998 to 971
Calculation steps:
[( 971 - 998 ) ÷ 998] x 100 = -2.71%
Formula
Percentage change = [(971 - 998) / 998] x 100
Subtract the new number by the original number
971 - 998 = -27
-27 ÷ 998 = -0.027054108216432865
-0.027054108216432865 x 100 = -2.71%