Infraction blackmail by captain black

But the post was (restored by CB):

Please tell me if my solution to the following problem(in blue) is correct. My answer to a) is $1479382 and answer to be b) is $1431904.84

You deposit $150 in your savings account every month for your retirement. Your conservative savings account earns 1% interest, compounded quarterly. Every quarter you deposit 5% more than the previous quarter.

a) How much money will you have after 25 years?

b) In addition to the deposit described above, if you withdraw a fixed $100 every quarter, how much money will you have after 25 years?Q8b.pdf

CB