A baker bought sugar, butter and flour to make three types of cakes, namely Sweet Serenade, Butter Bliss and Flourish Delight. The quantity of each ingredient, in kilograms, and the total cost for making each cake is shown in the following table.
| Ingredient | Sweet Serenade | Butter Bliss | Flourish Delight |
|---|---|---|---|
| Sugar | 0.3 | 0.2 | 0.4 |
| Butter | 0.225 | 0.34 | 0.17 |
| Flour | 0.275 | 0.25 | 0.325 |
| Total cost for each cake | $7.08 | $9.83 | $5.95 |
During a festival period, the cost of sugar and flour increase by 20% and the cost of butter decreases by 5%. Find the new cost of making one Sweet Serenade cake.[4]
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