-2.32% is the change from 993 to 970
Calculation steps:
[( 970 - 993 ) ÷ 993] x 100 = -2.32%
Formula
Percentage change = [(970 - 993) / 993] x 100
Subtract the new number by the original number
970 - 993 = -23
-23 ÷ 993 = -0.023162134944612285
-0.023162134944612285 x 100 = -2.32%