-0.8% is the change from 996 to 988
Calculation steps:
[( 988 - 996 ) ÷ 996] x 100 = -0.8%
Formula
Percentage change = [(988 - 996) / 996] x 100
Subtract the new number by the original number
988 - 996 = -8
-8 ÷ 996 = -0.008032128514056224
-0.008032128514056224 x 100 = -0.8%