PC$.63$ Etched Impressions produces custom laser$-$etched artwork on a variety of flat wood surfaces. They recently purchased some new equipment which

should help them be more productive. Data from the last two months' production can be found in the following table:

What was last month's single$-$factor productivity for Etched Impressions in terms of labor dollars? In other words, for every dollar spent on labor, how many

dollars of sales would they obtain? $($Round your answer to two decimal places.$)$

From last month to this month, by what percentage did Etched Impressions' productivity increase or decrease in terms of Energy $($BTUs and units produced,

not dollars$)?$

Write your answer as a percentage.

Display your answer to two decimal places.

Put a minus sign $("-")$ in front of your answer if the answer is a negative number $($i$.$e$.,$ a decrease$).$

What was this month's multi$-$factor productivity for Etched Impressions in terms of dollars? $($In other words, how many dollars of revenue did each dollar of

inputs produce? $($Round your answer to two decimal places.$)$

By what percentage did Etched Impression's multi$-$factor productivity improve, in terms of dollars, from last month to this month? $($Write your answer as a

percentage, and display your answer to two decimal places.$)$