-9.16% is the change from 993 to 902
Calculation steps:
[( 902 - 993 ) ÷ 993] x 100 = -9.16%
Formula
Percentage change = [(902 - 993) / 993] x 100
Subtract the new number by the original number
902 - 993 = -91
-91 ÷ 993 = -0.09164149043303121
-0.09164149043303121 x 100 = -9.16%