Answer:
a. Percentage decline in sales if the economy enters a recession is 50%
Step-by-step explanation:
We have the sales when the economy is strong is given at 2,000,000 hard drives.
We have the sales when the economy enters recession is only half as many as when the economy is strong, which is calculated as 2,000,000 * 0.5 = 1,000,000 hard drives.
So, the percentage decline in sales of hard drives if the economy enters a recession is calculated as:
( Sales in strong economy - Sales in recession economy) / Sales in strong economy * 100% = ( 2,000,000 - 1,000,000)/ 2,000,000 = 50%.
So, the answer is 50%.