-2.91% is the change from 997 to 968
Calculation steps:
[( 968 - 997 ) ÷ 997] x 100 = -2.91%
Formula
Percentage change = [(968 - 997) / 997] x 100
Subtract the new number by the original number
968 - 997 = -29
-29 ÷ 997 = -0.029087261785356068
-0.029087261785356068 x 100 = -2.91%