Given:
Sales = 768
Commission rate = 4%
To be able to get the commission, we multiply the sales by the commission rate in decimal form.
We get,
[tex]\text{ Commission = Sales x Commission rate}[/tex][tex]\text{ = 768 x }\frac{4(\text{\%)}_{}}{100(\text{\%)}}\text{ = 768 x 0.04}[/tex][tex]\text{ Commission = 30.72}[/tex]Therefore, the commission is 30.72.