-13.93% is the change from 991 to 853
Calculation steps:
[( 853 - 991 ) ÷ 991] x 100 = -13.93%
Formula
Percentage change = [(853 - 991) / 991] x 100
Subtract the new number by the original number
853 - 991 = -138
-138 ÷ 991 = -0.13925327951564076
-0.13925327951564076 x 100 = -13.93%