Apple numbers User Manual

 Dictionary of Functions

 

The DDB function calculates the depreciation of an asset based on a specified 
depreciation rate. If you don’t specify a rate, it defaults to the double-declining balance 
method.

DDB(cost, salvage, life, period, [factor])

 cost:  The initial cost of the asset.
 salvage:  The salvage value of the asset.
 life:  The number of periods over which the asset is depreciating.
 period:  The period for which you want to calculate the depreciation. Must use the 

same time units as life.

 factor:  Optional; a number that determines the depreciation rate. The higher the 

number, the more rapid the depreciation. If omitted, 2 (for double-declining) is 
assumed.

  

The DEGREES function converts radians to degrees.

DEGREES(radians)

 radians:  A number representing the size of the angle in radians.

  

DDB(1000, 100, 4, 1) returns $500.

DDB(1000, 100, 4, 2) returns $250.

DDB(1000, 100, 4, 3) returns $125.

DDB(1000, 100, 4, 4) returns $25.

DDB(1000, 100, 4, 1, 1) returns $250.

DDB(1000, 100, 4, 1, 3) returns $750.

DDB(1000, 100, 4, 2, 3) returns $150.

DDB(1000, 100, 4, 3, 3) returns $0.

DEGREES(PI()) returns 180 (pi radians = 180 degrees).

DEGREES(1) returns 57.2957795130823, which is approximately the number of degrees per radian.