E$6-4($Algo$)$ Analyzing Changes in Price, Cost Structure, Degree of Operating Leverage $[$LO $6-4,6-5]$

Cove's Cakes is a local bakery. Price and cost information follows:

$\backslash$table$[[$Price per cake,$],[$Variable cost per cake,$13\mathrm{.}91],[$Ingredients$,2\mathrm{.}34],[$Direct labor,$1\mathrm{.}09],[$Overhead $($box$,$ etc.$),0\mathrm{.}15],[$Fixed costs per month,$4,028\mathrm{.}70$

Required $2-$assume that cove sold $410$ K last month calculate the company degree of operating leverage

Required $3$ Says $-$ using the degreeof operating leverage,calculate the change and profit caused by a $15\%$ increase in sales revenue