Answer: 14.63%
Step-by-step explanation:
Based on the information given in the question, the effective annual cost of credit will be calculated as:
Effective annual cost of credit = [Interest rate/ (100 - Deposit Rate)] x 100
= [12 /(100 - 18)] x 100
= (12 / 82) × 100
= 0.1463 × 100
= 14.63%
The effective annual cost of credit is 14.63%.