Solve for rate in the following application problem. A company reports that office income last month was $315,400, while advertising expenses were $21,447.20. What percent of last month's income was spent on advertising?
[tex]\frac{21447.20}{315400}[/tex] When you divide this, you get 0.068. This is in decimal form. To change to a percent move the decimal to places to the right 6.8%