What is an example of a change made for the sake of efficiency that has a positive effect for one group and a negative effect for another? Identify the parties involved and the positive and negative effects for the two parties.​

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?