The amount of an 8.7% increase depends on how much your benefits are currently worth. If you currently receive $2,000 per month, then an 8.7% increase will lead to an increase of $174. However, if you only receive $1,000 per month, then your increase will only be $87 per month. Simply take your current benefit amount and multiply it by 8.7%. This will quickly show you how much of an increase you will see in your monthly payment.