By default, cells formatted as numbers display as many decimal places as you enter in them. You can change this setting so cells formatted as numbers display the same number of decimal places.
Changes to decimal settings apply to both numbers and percentages. For example, if you change a cell with a number into a percentage, the number of decimal places displayed doesn’t change.
Go to Keynote for iCloud , then sign in to your Apple Account (if necessary).
In your presentation, select a cell or a range of cells in the table.
Click Data at the top of the Format sidebar on the right, then click the Data Format pop-up menu and choose Number, Scientific, or Fraction.
Number: Displays standard number formatting. You can adjust the formatting in the following ways:
Set the number of decimal places: In the Decimals field, enter the number of decimal places you want displayed.
Display as many decimal places as you enter in each cell: Click the Decimals down arrow until you reach the Auto setting.
Specify how negative values appear: From the pop-up menu to the right of the Decimals field, choose an option.
Show the thousands separator: Click the Thousands Separator checkbox to select it.
Scientific: Displays numbers in scientific notation. In the Decimals field, enter the number of decimal places you want displayed or choose Auto to display as many decimal places as you enter.
Fraction: Displays numbers with a numerator and a denominator. Choose an option from the Accuracy pop-up menu to specify the maximum number of digits you want displayed, or to round the value to the nearest half, quarter, and so on.