Class 4. Q.4

The Italian Government has decided on a tax incentive program to stimulate the filing of tax returns.Suppose you receive $\$400$ and you spend $60\%$ of this, and each of the people who receives what you spend also spend $60\%$ of what they receive, and this process goes on without an end. According to the multiplier doctrine in economics, the effect of your $\$400$ tax rebate is multiplied many times. What is the total amount spent if the process continues as indicated?