-3.21% is the change from 998 to 966
Calculation steps:
[( 966 - 998 ) ÷ 998] x 100 = -3.21%
Formula
Percentage change = [(966 - 998) / 998] x 100
Subtract the new number by the original number
966 - 998 = -32
-32 ÷ 998 = -0.03206412825651302
-0.03206412825651302 x 100 = -3.21%