Apple Keynote '09 - Manual (Page 192)

For this scale option When you enter 12000
in a table cell The actual value is The displayed value is
Billions (B) And later apply the
option 12000 0B
After applying the
option 12000 0B
Trillions And later apply the
option 12000 0
After applying the
option 12000 0
Trillions (T) And later apply the
option 12000 0T
After applying the
option 12000 0T
Scientific And later apply the
option 12000 1E+0.4
After applying the
option 12000 1E+0.4
192 Chapter 10 Using Tables