Sandhill, Inc. is a company that manufactures and sells a single product. Unit sales for each of the four quarters of $2025$ are projected

as follows.

Sandhill incurs variable manufacturing costs of $$0\mathrm{.}40$ per unit and variable nonmanufacturing costs of $$0\mathrm{.}40$ per unit. Sandhill will

incur fixed manufacturing costs of $$849,600$ and fixed nonmanufacturing costs of $$1,274,400.$ Sandhill will sell its product for $$4$ per

unit.

$($a$)$

Determine the amount of net income Sandhill will report in each of the four quarters of $2025,$ assuming actual sales are as

projected and employing the integral approach to interim financial reporting. $($Ignore income taxes.$)$ Repeat the analysis under the

discrete approach. $($Round answers to $0$ decimal places, e$.$g$.5,125.$ Enter negative amounts using either a negative sign preceding the

number e$.$g$.-45$ or parentheses e$.$g$.(45).)$

$($b$1).$

Compute Sandhill's profit margin on sales for each of the four quarters of $2025$ under both the integral and discrete approaches.

$($Round answers to $1$ decimal place, e$.$g$.52\mathrm{.}5\%.$ Enter negative amounts using either a negative sign preceding the number e$.$g$.-45$ or

parentheses e$.$g$.(45).)$