Question

Last week, Ramiro worked 20 hours. This week he worked 22 hours. What is the percent change from last week to this week?

Answer 1

percentage change is 10% increase.

Explanation:

Ramiro worked last week = 20 hours

He worked this week = 22 hours

Difference in time = 22 - 20 = 2 hours

Here we can see the number of hours are increasing.

Percent change formula =
`((V_2-V_1))/(V_1)* 100`

V₁ = Old Value

V₂ = New value

Now put the values in the formula

=
`((22-20))/(20)* 100`

=
`(2)/(20)* 100`

`=(200)/(20)`

= 10%

percent change is 10% increase from last week to this week.