C Program To Calculate Percentage Difference Between 2 Numbers

http://technotip.com/7344/c-program-to-calculate-percentage-difference-between-2-numbers/

Given two numbers, write a C program to calculate percentage difference between those two numbers.

Formula To Calculate Percentage Difference Between Two Numbers If user entered numbers are stored in variables a and b. Then the formula to calculate the percentage difference between a and b is:

result = ( |a-b| / (a+b) / 2.0 ) * 100;

OR

result = ( abs(a-b) / (a+b) / 2.0 ) * 100;

Note: abs() is a builtin method present in stdlib.h header file, which returns the absolute value.

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