The red ones are wrong. I need help with correcting them

Using the base case, calculate the composite effects $ofa5$ percent increase $in$ Sales, $a2$ percent decrease $in$

Gross Margin, and $a5$ percent increase $isSG$&$Aas$ percent $of$ Sales.

Colossal Chemical Corporation

Year Ended December $31,2021$

$($$$000,000$ omitted$)$

For the base case $in$ this question, $as$ a percentage $of$ sales, COGS $=61$ percent, SGA$=17$ percent, $R$&$D=5\mathrm{.}0$

percent. Depreciation, Interest expense are fixed $as$ stated. Tax Rate $is20$ percent.