# If John made 42 deliveries in June and 50 deliveries in May, how many less deliveries did John make in June?

Aug 25, 2017

See a solution process below:

#### Explanation:

The decrease can be found by subtracting last months deliveries from this months deliveries:

$42 - 50 = - 8$

John made $8$ less deliveries in June than in May.

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If you are looking for the percent decrease we can use this formula for calculating the percent change in a value between two points in time:

$p = \frac{N - O}{O} \cdot 100$

Where:

$p$ is the percent change - what we are solving for in this problem.

$N$ is the New Value - 42 deliveries in this problem.

$O$ is the Old Value - 50 deliveries in this problem.

Substituting and solving for $p$ gives:

$p = \frac{42 - 50}{50} \cdot 100$

$p = - \frac{8}{50} \cdot 100$

$p = - \frac{800}{50}$

$p = - 16$

Between May and June there was a 16% decrease in the number of deliveries John made.