Percent Increase, Decrease, and Discount

(The amount of increase) = (% Increase) · (The Initial Tuition)

Note: $26.00  - $20.00 = $6.00 The amount of increase!

Therefore: $6 = x \cdot 20$

$\frac{6}{20} = \frac{20x}{20}$

$0.3 = x$

$x=0.3 = 30\%$

30% Increase.

(The amount of decrease) = (% Decrease) · (The Initial salary)

$=(0.04) \cdot (53,500.00)$

$=2,140,00$ The amount of decrease!

The "New salary" = (Initial salary) - (The amount of decrease)

$=53,500.00-2,140.00$

$=51,360.00$ New Salary.

(The amount of discount) = (Original price) - Discounted price)

$=54.95 - 32.97$

$=21.98$ The amount of discount.

(The amount of discount) = (% Discount) · (Original price)

$21.98 = x \cdot 54.95$

$\frac{21.98}{54.95} = \frac{54.95x}{54.95}$

$0.4 = x$

$40\% = x$

So the percent discount is 40%.