"Customer base growth over 1000% including a recen

"Customer base growth over 1000% including a recent 10 times month over month growth during the past 2 quarters"

I need to correct the below since I didn't read it correctly:

The 10x month over month means that whatever the normal or average amount that is added every month has been 10 times that for the last two months and the final number is 1000% (or 10 times) what the original number was at some point in time.

So: say average increase every month is 10,000 then the last two months would be an increase of 100,000 the last month and 100,000 the month before. The final number would be as follows:

final # = 10 * (initial #) which is also = avg # increase * (# of months not including the last two months increase) + 10 * (avg # increase) * 2

There are two equations with four unknowns. If you can figure out the initial and number of months then you can solve for the other two...

As clear as mud.