NO.PZ2024030503000218
问题如下：
The analyst's forecasted gross profit margin should be closest to a(n):
An analyst uses the following information to forecast a company's gross profit:
选项：
A.984
B.960
C.1250
解释：
A is correct，because the gross profit for the current year is 900 (=1,200 – 300), therefore the current gross profit margin is 75%. If sales increase by 8% (to 1,296) and cost of sales increase by 4% (to 312), the forecasted gross profit is 984 (= 1,296 – 312)
解析里给出gross profit margin = 75%，最终答案则是用1296 - 312 得处，那么为什么要计算gross profit margin？
另外，为什么这题不能用1296 * 75% 得出答案？
