plese help me

It has been forecast that, in future, insurance costs for sports cars will rise sharply. This will have an adverse effect on the demand for WJE's Puma car with an estimated fall in sales of 100 Puma cars per year at each market price. (a) Draw and label the new Demand Curve on the diagram that you have constructed in question 4. (b) Explain how market forces would act to return the market to a state of equilibrium at the new equilibrium position