Plz help! Giving brainliest to a complete and correct answer. Absurd answers will be reported.

Use absolute difference

Step-by-step explanation:

Given

The given parameters can be represented as:

Required

Eliminate negative difference

To eliminate negative difference, Sara has to  make use of absolute difference when calculating the difference between her income and expense.

Take for instance:

The difference between both is:

But if she uses absolute difference, the result will be:

if you need just tell me and i will come to the rescue.

step-by-step explanation:

the answer is 21%.