Question

What is the decimal multiplier to increase by 2.8%

Answer 1

Answer:

we want to add 20% to £110.

To work out the multiplier, add 20 to 100, to get 120, and then change it to a decimal (divide by 100) to get 1.2.

The answer is £110 x 1.2 = £132.

With a small amount of practice the multipliers are easy

Answer 2

Given,

A number is increased by 2.8%

To Find,

Decimal multiplier to given increase =?

Solution,

If the number is 1 then it will be increased by 2.8%.

The new number  = 1 + 2.8% of 1

The new number  = 1 + 2.8/100 * 1

The new number  = 1 + 28 / 1000

The new number  = 1 + 0.028

The new number  = 1.028

Hence, the decimal multiplier to increase by 2.8% is 1.028.