1. **State the problem:** We need to find the sum of all the credits listed for the recordings and the referral bonus. 2. **List all credits:** The credits are: 4.46, 4.16, 4.10, 4.16, 4.09, 4.17, 4.38, 4.47, 4.43, 4.39, 4.38, 4.44, 4.38, 4.46, 4.47, 4.43, 25 (Referral Bonus), 4.16, 4.14, 4.16, 4.16, 4.14, 4.12, 4.12, 4.17, 4.13, 4.17, 4.43, 4.38, 4.46, 4.46, 4.46, 4.41, 4.39, 4.43, 4.46, 4.39, 4.43, 4.43, 4.38, 4.46, 4.38, 4.14, 4.14, 4.16, 4.13, 4.13, 4.16, 4.17, 4.17, 4.16, 4.10, 4.13, 4.16, 4.14, 4.16, 4.14, 4.10, 4.16, 4.09, 4.10, 4.16, 4.75, 4.75, 4.75, 4.79, 4.77, 4.75, 4.75, 4.75, 4.77, 4.75, 4.75, 4.75, 4.75, 4.79, 4.16, 4.19, 4.19, 4.17, 4.16, 4.16, 4.17, 4.75, 4.75, 4.75, 4.75, 4.75, 4.75, 4.75, 4.75, 4.72, 4.75, 4.77, 4.75, 4.77, 4.75, 4.75 3. **Sum the credits:** $$\text{Sum} = 4.46 + 4.16 + 4.10 + 4.16 + 4.09 + 4.17 + 4.38 + 4.47 + 4.43 + 4.39 + 4.38 + 4.44 + 4.38 + 4.46 + 4.47 + 4.43 + 25 + 4.16 + 4.14 + 4.16 + 4.16 + 4.14 + 4.12 + 4.12 + 4.17 + 4.13 + 4.17 + 4.43 + 4.38 + 4.46 + 4.46 + 4.46 + 4.41 + 4.39 + 4.43 + 4.46 + 4.39 + 4.43 + 4.43 + 4.38 + 4.46 + 4.38 + 4.14 + 4.14 + 4.16 + 4.13 + 4.13 + 4.16 + 4.17 + 4.17 + 4.16 + 4.10 + 4.13 + 4.16 + 4.14 + 4.16 + 4.14 + 4.10 + 4.16 + 4.09 + 4.10 + 4.16 + 4.75 + 4.75 + 4.75 + 4.79 + 4.77 + 4.75 + 4.75 + 4.75 + 4.77 + 4.75 + 4.75 + 4.75 + 4.75 + 4.79 + 4.16 + 4.19 + 4.19 + 4.17 + 4.16 + 4.16 + 4.17 + 4.75 + 4.75 + 4.75 + 4.75 + 4.75 + 4.75 + 4.75 + 4.75 + 4.72 + 4.75 + 4.77 + 4.75 + 4.77 + 4.75 + 4.75$$ 4. **Calculate the total:** Adding all these values gives approximately: $$\text{Sum} \approx 400.88$$ 5. **Answer:** The total sum of the credits including the referral bonus is approximately **400.88** credits.