Write the next sentence in the following story.

How to decide when to use a spreadsheet
Determine if you need a spreadsheet.
If you have the data in written form, assess how manageable it is on the page. You may want to consider a spreadsheet if you have tried to calculate the results manually.

Possible answers: (I) If you have the data in written form, you may want a spreadsheet that monitors data through an external program. Evaluate how long the data stays in the spreadsheet.; (II) If you have (but hasn't) yet successfully done that, you may not need a spreadsheet. The required data for your chosen purpose in using a spreadsheet can be found online or in the op website.; (III) This is the best way to determine the effectiveness of the market projections. Read the financial statement sheet to see what it includes.; (IV) A spreadsheet will electronically calculate the sum total of your data. Most spreadsheet software will also calculate averages, multiples and a great many mathematical formulas, quicker than it can be done manually.;. The answer should be
(IV)