Depreciation Amount of Fixed Asset

Hi to all,

I would like to ask for help regarding Depreciation of Fixed Asset. I do not know how Navision computed the depreciation amount. Below is the screenshot

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Image Link postimage.org/…/

Note: ASSET LIFE IS 20 YEARS, DEPRECIATION METHOD IS STRAIGHT LINE.

The amount in enclosed of blue rectangle is computed by

435,0000 + 924,462.01 + 194,623.58 = 1,554,085.59 / 20 /12 = 6,475.36

The Problem is that the next depreciation amount (enclosed in red), I do not know how it is computed.

Please someone help me.