SIMPLE AND COMPOUND INTEREST

1. SIMPLE INTEREST

2. Amount= Principal+Interest

3. SI= Principal*Time*Rate/100

4. Amount= P+PTR/100= P(1+RT/100

5. APPRECIATION AND DEPRECIATION

6. Appreciation = Initial/Starting Value* (1+ %inc or dec/100)^t

7. COMPOUND INTEREST

8. CI= P(1+ r/100)^t- P

9. OR CI= P[(1+r/100)^t-1]

10. Amount= P(1+r/100)^t

11. When the P is compounded semi annualy: Amount= P (1+r/100)^2t

12. Depreciation = Initial/starting value* (1+ %inc or dec/100)^t