筆試Numerical一題求解

學識都 人氣:2.54W

關於production of 15mm buttons,July-December 的'最後一問:What was the loss in potential sales revenue attributable to the production of sub-standard (as opposed to standard) buttons over the 6 month period? 答案137.50是如何求得的。麻煩幫我解答下 謝謝謝謝!!

筆試Numerical一題求解