Prior Period Adjustment reflected on Schedule M-2 Form 1120
While filing the 2018 income tax for an 1120 I found that there had been errors made in 2016 and 2017. On the 2018 Schedule M-2 do I show the change in retained earnings on line 3 and line 6 as "Prior Period Adjustments"? Maybe there is a better way to reflect the change.
Also, do I net the amounts from each year? For each year 2016 and 2017 there are two errors. Maybe I should say "Prior Period Adjustment year 2016" then "Prior Period Adjustment Year 2017".