Answer:
It represents a 5% change to the marketing mix.
Explanation:
The change = 500/10,000 x 100 = 5%.
Company A's change in a variable can be compared with another index, by expressing the change (addition) as a percentage of the index. Â For instance, the sale of 10,000 units is an index. Â The additional 500 units that is needed to be sold represent the change. Â In percentage terms, the change can be divided by the index and then multiplied by 100.