-2.22% is the change from 992 to 970
Calculation steps:
[( 970 - 992 ) ÷ 992] x 100 = -2.22%
Formula
Percentage change = [(970 - 992) / 992] x 100
Subtract the new number by the original number
970 - 992 = -22
-22 ÷ 992 = -0.02217741935483871
-0.02217741935483871 x 100 = -2.22%