Let’s say we are examining a new credit card offering. The main sources of income would include card fees, interest generated from balances carried by cardholders, and interchange fees collected from merchants. Regarding the revenue growth trajectory, we could anticipate a gradual increase over time, closely linked to the card's adoption rate among the intended customer base. Initially, revenues may be modest due to promotional incentives aimed at attracting subscribers. However, as the number of subscribers increases and the promotional period concludes, revenues are expected to rise. In our forecasting, we would take into account factors such as variations in the target market size, changes in consumer spending behaviors, and fluctuations in interest rates. For example, if economic predictions indicate a rise in consumer spending, we might foresee an increase in our revenues. Nevertheless, this model will rely on assumptions such as consistent growth in the customer base, moderate default rates, and stable interchange fees. Any changes in these variables will impact the revenue growth trajectory.