Hello!
The factors that affect consumer demand for a product is the price and the person's income.
If the price of the product increases, the demand for the product will decrease. If the price of the product decreases, then the demand for the product will increase.
Demand is also affected by a person's income. The more money a person makes, the more money he has to spend on the product, which increases demand. If a person makes less money than he did before, demand for a product will decrease because he can no longer afford it.
I hope this helps you! Have a lovely day!
- Mal