-32.36% is the change from 992 to 671
Calculation steps:
[( 671 - 992 ) ÷ 992] x 100 = -32.36%
Formula
Percentage change = [(671 - 992) / 992] x 100
Subtract the new number by the original number
671 - 992 = -321
-321 ÷ 992 = -0.3235887096774194
-0.3235887096774194 x 100 = -32.36%