-1.3% is the change from 998 to 985
Calculation steps:
[( 985 - 998 ) ÷ 998] x 100 = -1.3%
Formula
Percentage change = [(985 - 998) / 998] x 100
Subtract the new number by the original number
985 - 998 = -13
-13 ÷ 998 = -0.013026052104208416
-0.013026052104208416 x 100 = -1.3%