not sure what you did back in 2020, but apparently you used a different depreciation method for regular tax purposes and AMT purposes. The same method should have been used for both.
the numbers presented in the ADJ/PREF column don't make sense. They shouldn't exist because the method selected and thus the deduction should be the same for regular tax and amt tax. thus no difference. In addition, there is no logic to 2 amounts in the ADJ/PREF being negative and 1 being positive
in addition, if 150DB is selected for regular tax purposes in a year for 5-year assets that method applies to all.
