Hi Dolors,
using one depreciation area the increase vom 2015 works fine:
| Net Book Value | Depreciation | |
| 2010 | 100.000,00 | 10.000,00 |
| 2011 | 90.000,00 | 10.000,00 |
| 2012 | 80.000,00 | 10.000,00 |
| 2013 | 70.000,00 | 7.000,00 |
| 2014 | 63.000,00 | 7.000,00 |
| 2015 | 56.000,00 | 11.200,00 |
| 2016 | 44.800,00 | 11.200,00 |
| 2017 | 33.600,00 | 11.200,00 |
| 2018 | 22.400,00 | 11.200,00 |
| 2019 | 11.200,00 | 11.200,00 |
From 2015 on the net book value is distributed over the remaining useful life.
Maye you use the scrap value to control the amount?
Kind Regards,
Steffen