Penny works for a cake factory selling only cakes.Whenever the shop offers a 10% discount the sales volume increases by 11%Penny believes the shop should offer a permanent 10% discount to increase sales. The manager regected the idea, but one month later comes up with another idea to ofeer a 5% discount on cakes to increase overall sales by 6%. This time the manager accepts her idea. Why? The manager is wrong in her decision both times The manager is wrong the first time and right the second time The manager is right the first time and wrong the second The manager is right both times.