When provided the following data points, how do I determine: the amount needed in total for 25 years of retirement, and If I start making deposits in one year and make the last deposit on the day I retire, what amount must be deposited annually to be able to make the desired withdrawals at retirement?

Years until retirement: 30 

Amount to withdraw each year: $ 95,000 

Years to withdraw in retirement: 25 

Interest rate: 8.0%

Inflation rate: 2.0%