Amanda pooled all her savings and is opening a coffee shop in a train station. She knows that controlling her costs will be important to the success of the shop. She will not be able to work all the hours the shop is open, so the employees will need some guidelines to perform their jobs correctly. After talking to an accounting professor, she decides she needs a standard cost system for her shop. Provide any two (2) suggestions to help Amanda in setting her standards for materials and labo .