Income statements for Stuart Company for Year $3$ and Year $4$ follow.

$\backslash$table$[[,$STUART COMPANY,,$],[,$Income Statements,,$],[,,$Year $4,$Year $3],[$Sales$,$$$201,900,$$$181,900,],[$Cost of goods sold,$143,100,121,100,],[$Selling expenses,$21,200,19,200,],[$Administrative expenses,$12,200,14,200,],[$Interest expense,$3,700,5,700,],[$Total expenses,$$180,200,$$$160,200,],[$Income before taxes,$21,700,21,700,],[$Income taxes expense,$5,500,3,400,],[$Net income,$$16,200,$$$18,300,]]$

Required

a$.$ Perform a horizontal analysis, showing the percentage change in each income statement component between Year $3$ and $Y_e$

b$.$ Perform a vertical analysis, showing each income statement component as a percentage of sales for each year.

Complete this question by entering your answers in the tabs below.

Required $A$

Required $B$

Perform a vertical analysis, showing each income statement component as a percentage of sales for each year. $($Percentages may not add exactly due to rounding. Round your answers to $1$ decimal place. $($i$.$e$.,0\mathrm{.}234$ should be entered as $23\mathrm{.}4).)$

$\backslash$table$[[$STUART COMPANY$],[$Vertical Analysis of Income Statements$],[,\backslash$table$[[$Percentage of$],[$Sales Year $4]],,\backslash$table$[[$Percentage of$],[$Sales Year $3]]],[$Sales$,100\mathrm{.}0,\%,100\mathrm{.}0\%$