Reverse Depreciation formula

Ravi Rawat (Trainee Accountant ) (39 Points)

20 August 2020  
I have last 2 years balance sheet.
I want to calculate depreciation as per companies act. But I don't know purchasing or capitalized date of some assets. How to calculate depreciation??? If someone have reverse Calculation Formula so that I calculate exact date... Please help sir / mam 🙏🙏🙏🙏🙏