In: Economics
Current price = P
New Price = P*
dP = P* - P
P* = 95P/100
= > dP = 95P/100 – P
= > dP/P = -5/100
Now , the total demand is 1million for Starbucks
2million for McDonalds
4million for Chick Fil-A
Elasticity of demand = (dQ/Q)/(dP/P)
= > -0.75 = (Q* - Q)/Q/(-5/100); Q*= new store sales
For Starbucks:-
= > 0.75 *5/100 = Q*/Q -1
= > 0.75 *5/100 + 1 = Q* (10-5); Q=1 million
= > 37500 + 105 = Q*
= >Q* = 1037500
For McDonalds:-
= >0.75 * 5/100 = Q*/Q -1
= > 0.75 *5/100 + 1 = Q* (20-5);
= > 75000 + 205 = Q*
= > Q* = 2075000
For Chick Fil A:-
= > 0.75 *5/100 = Q*/Q -1
= >0.75 *5/100 + 1 = Q* (40-5);
= > Q* = 4150000