if you can show your work that would be greatly appreciated! thank you!

Question 1 4 pts Standards for the materials costs of one package of fireworks are as follows: 7 ounces @ $4.00 $28.00 During July, 800 packages were produced, 5,980 ounces were purchased at $3.95 per ounce, and 5,550 ounces were used in production. For July, what was the materials usage variance? If the variance is unfavorable, append a "U" to the end of your answer. If the variance is favorable, append an "F" to the end of your answer (no spaces, capitalized). Please omit spaces between your integer only) numeric answer and the letter, and capitalize the letter. Examples: 5000 or 1000F