-98.4% is the change from 997 to 16
Calculation steps:
[( 16 - 997 ) ÷ 997] x 100 = -98.4%
Formula
Percentage change = [(16 - 997) / 997] x 100
Subtract the new number by the original number
16 - 997 = -981
-981 ÷ 997 = -0.9839518555667001
-0.9839518555667001 x 100 = -98.4%