I am having a similar problem. I entered $500 and then as I recall a second screen came up and I entered it again. Line 205 shows $500 however, on income summary comes out as $1,000. The only way I have been able to reduce is by making line 205, 0.00 then other income comes to $500 which is right. However, if CRA look at line 205 and it is 0.00 then they will probably say I have not inputted this amount on my return correctly and want more money.
Is there away to adjust line 205 so it shows $500 and other income on the income summary comes out as $500 not $1,000? Thanks.