To solve this question we have to make deduct these 2 years. 2099 minus 1976 will give the answer.
You are 123 years old.
(1476 months are passed.)
From 1976 to 2099 there are 123 years. If you want to learn your age in 2099 (born in 1976) your age is 123.
Let's see what will be your age if you born +1 or -1 from that date.