Polkadot underwent a reverse split/swap where each owner received 100 new coins for one old one and the price was also divided by 100.
Some exchanges (for example Binance) imported the new coin as INTEREST only.
To enter / correct this in CoinTracking, please do the following.
1) Any coins purchased before the swap need to have the ticker DOT to receive the correct asset value.
2) Enter a TRADE from 1 DOT into 100 DOT2 on the day you received the new coins (this can vary between August 18th 2020 on Binance to August 20th for smaller exchanges).
If you received INTEREST please select that transaction on the Enter Coins page and turn it into a Trade via Edit.
This will be indicated with a blue frame around the word swap and also with a note in the tax report.
3) Any coins received after the swap need to have the ticker DOT2.
For the ELROND reverse split/swap, please follow the instructions above, swapping ERD for EGLD with the ratio of 1:1000.