How to define Depreciation Method for an Asset which is Licence of Software

 Hi,

I have this business, please help me how to select/define Depreciation Method for it:

Buy an Licence of Software with cost 300$. Follow government, it must be manage as an asset, an prorate as follow:

- Year 1: 60% --> 180$

- Year 2: 30% --> 90$

- Year 3: 10% --> 30%

For each year, we must use method Straight Line daily to depreciate the value of year.

Please guide me how to setup method to meet the required formula. Many thanks!