correct answer is required Please I will appreciate step by step maths process. All necessary information is given in the question don't ask for more. I will appreciate no gamble to this. If you take time to help with this my thumb is ready to go up!

Ken purchase a $200,000 home. Mortgage payments are to be made monthly for 30 years with the first payment to be made one month from now. The annual effective rate of interest is 5%, starting with the 100th payment, each monthly payment is increased by $400 in order to repay the mortgage more quickly. 5. Calculate the total amount of interest paid during the duration of the loan