Hello, abc434589!

I have the total sales of a product for 5 years.

I have the % growth by year for each of the 5 products that combine the total

and i need to find the %split of the total, by product.

i tried solving by simultaneous equations but these seem to give negative numbers.

Possibly because the source data is inaccurate.

I wondered if this was the best way or if there were any way to estimate the splits?

The table above shows the percentage increase of each product (a-e)

from the previous year, and the total sales of a-e for that year.

I need to know the split of a-e in making up the total for each year. Ideas?

I'm not familiar with the term %split.

Would you explain it . . . or give us the original wording of the problem?

I see a lot of messy algebra/arithmetic in our future.

Do the same for all five products and revise the chart.

Add down the columns and create a system of five equations.

Solve the system and determine the original number of each product.

Good luck!