Question

2) Riddington and Greenwick are two small villages.

The population of Riddington has increased from 80 people to 120 people.
The population of Greenwick has decreased from 200 people to 120 people.
Show that Riddington has had the greater percentage change in its population.
You must show all your working.

Answer 1

• See below

Explanation:

Find the amount of change in both cases and convert the change into percentage, then compare final results.

1. Riddington

Change:

• 120 - 80 = 40

Percent change:

• 40/80*100% = 50% increase

2. Greenwick

Change:

• 200 - 120 = 80

Percent change:

• 80/200*100% = 40% decrease

As we see 50% > 40% so this proves the statement.