With the big coin likes BTC, ETH, LTC,... I will sell after getting about 10% profit. With small coins or new tokens, I will sell after getting 20-30% profit.
Its good to know that you are being organize in setting target when to sell your bitcoin. It is a good practice and i like to adopt yours after reading this.

Specially that bitcoin and other cryptocurrency are very unpredictable. Now the price of bitcoin is good becuase it keeps pumping up but we cant tell what can happen next.