Answer:
quantity demand 3.7%
revenues decrease by 2.74%
Explanation:
As the price-elasticity is negative this means as price increase, the sales will decrease:
If price rise by 1% then sales will drop by 3.7%
revenue will change as follows:
sales quantity x price
(1 - 0.037) x 1.01 = 0,97263 revenues
1 - 0.97263 = 0,02737
revenues will decrease by 2.74%