-6.72% is the change from 997 to 930
Calculation steps:
[( 930 - 997 ) ÷ 997] x 100 = -6.72%
Formula
Percentage change = [(930 - 997) / 997] x 100
Subtract the new number by the original number
930 - 997 = -67
-67 ÷ 997 = -0.06720160481444333
-0.06720160481444333 x 100 = -6.72%