Profit and gain of business or profession

Raja purchased house property on 1.12.2015 for INR 10,00,000 and the same was self-occupied as residence.
On 1.12.2018 the said house was brought into use for his Chartered Accountancy Profession. Rate of depreciation
at the time of purchase of house was 15%. Rate of deprecation for AY 2019-20 is 10%. Compute the WDV of
assets on 31.3.2019