# Math Help - simple percentage increase

1. ## simple percentage increase

hello,

could you help.

i am trying to go back up a financial statement but stuck. could someoone help please example below.

2011 2012

profit before tax 100 X
Tax Rate 20% 20%

Total profit 80 120

How do i get to "X"?

thanks

2. ## Re: simple percentage increase

Originally Posted by beng986
hello,

could you help.

i am trying to go back up a financial statement but stuck. could someoone help please example below.

2011 2012

profit before tax 100 X
Tax Rate 20% 20%

Total profit 80 120

How do i get to "X"?
thanks
1. If I understand your problem correctly the "total profit" is 80% of the income. If so:

2. $80\% = \frac{80}{100} = 0.8$

$120= 0.8 \cdot x~\implies~x=\frac{120}{0.8} = 150$