What is the formula of a discount?

The textbook discusses several things that determine how price elastic the supply of a good or service is. These are known as the determinants of the price elasticity of supply. Changes in these determinants can cause the elasticity of supply to change. The figure below shows a supply curve that starts out perfectly inelastic at S, and then becomes more elastic as it moves to S,, and then to S3. Which of the determinants of the elasticity of supply could this graph be representing? S. Price Quantity Determinant Represented by the Graph Drag appropriate answer(s) here time and the adjustment process %23 the flexibility of buyers change in income the flexibility of producers Drag appropriate answer(s) here Not a Determinant Represented by the Graph

Suppose a local supermarket runs a discount campaign on the sales of shampoos using discount coupons – any customer who shows a discount coupon will be offered an X% discount on the original retail price on Black Friday. Briefly explain the economics behind this discount campaign.

Assume that the price elasticity of demand for the premium version of NBCUniversal's streaming service Peacock is predicted to be 1.60. Should NBCUniversal increase or decrease the $4.99/month price to increase total revenues? Briefly explain why the price elasticity of demand for the premium version of Peacock is predicted to be elastic.