-1.2% is the change from 997 to 985
Calculation steps:
[( 985 - 997 ) ÷ 997] x 100 = -1.2%
Formula
Percentage change = [(985 - 997) / 997] x 100
Subtract the new number by the original number
985 - 997 = -12
-12 ÷ 997 = -0.012036108324974924
-0.012036108324974924 x 100 = -1.2%