Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: The Quill and Scroll is a stationery shop.  Its stock and sales for May are listed in the table shown. What percent of its sales were not pens or pencils? \begin{tabular}{|l|c|}
\multicolumn{2}{c}{}\\\hline
\textbf{Item}&\textbf{$\%$~of May Sales}\\\hline
Pens&38\\\hline
Pencils&35\\\hline
Other&?\\\hline
\end{tabular}
user