This year $(10$ years after you first took out the loan$),$ you check your loan balance. Only part $of$ your payments have been going $to$ pay down the loan; the rest has been going towards interest. You see that you still have $$110,533$ left $to$ pay $on$ your loan. Your house $is$ now valued $at$ $$200,000.$

Your current situation

How much $of$ the original loan have you paid off? $(i.e,$ how much have you reduced the loan balance $by?$ Keep $in$ mind that interest $is$ charged each month $-$ it's not part $of$ the loan balance.$)$