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To solve the problem of calculating the increase in consumer surplus, we need to determine the area of the change in the triangle that represents consumer surplus on the graph.

### Step-by-Step Solution:

1. **Identify the Initial and New Prices:**
   - The price decreases from $22 to $16.

2. **Find the Corresponding Quantities:**
   - At $22, the quantity is approximately 40 units.
   - At $16, the quantity is approximately 90 units.

3. **Calculate the Change in Consumer Surplus:**
   - The increase in consumer surplus is the area of the triangle formed by the change in price (height of the triangle) and change in quantity (base of the triangle).
   - The base is $90 - 40 = 50$ units.
   - The height is $22 - 16 = 6$ dollars.

4. **Calculate the Area of the Triangle:**
   \[
   \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} = \frac{1}{2} \times 50 \times 6 = 150
   \]

Thus, the increase in consumer surplus would be $150. 

The answer choices should be checked again since the correct increase is $150. Let me know if you need further details or explanations!

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### Related Questions:
1. How do we calculate producer surplus from a supply-demand graph?
2. What factors can cause shifts in supply and demand curves?
3. How does consumer surplus change with a decrease in demand?
4. Can the area representing consumer surplus ever become negative?
5. How does elasticity affect the size of changes in consumer surplus?

### Tip:
Always pay attention to units and changes in price and quantity when calculating areas representing economic concepts like consumer and producer surplus.

If the price decreases from $22 to $16, by how much would consumer surplus increase?

Learn how to calculate the increase in consumer surplus when the price decreases from $22 to $16. This economics problem covers the concept of consumer surplus and involves calculating the area of a triangle formed by supply and demand curves.

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