Operation of WPP[edit] WPP is run prior to compilation (in other words, before even the C preprocessor), and generates a trace message header for each file that it processes (by default this header is filename.tmh, where filename is the name of the processed source file). WPP's understanding of C/C++ syntax is very limited.
Divide the new value by the old value and multiply by 100 to find the absolute relationship between the two values. A process that is similar (but not identical) to the process used to find percent change is that used to find the absolute percentage relationship between the old and new values.
To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Increase = New Number-Original Number. Then: divide the increase by the original number and multiply the answer by 100.% increase = Increase Ã· Original Number Ã 100. If your answer is a negative number then this is a percentage decrease.f your answer is a negative number then this is a percentage increase. If you wish to calculate the percentage increase or decrease of several numbers then we recommend using the first formula. Positive values indicate a percentage increase whereas negative values indicate percentage decrease.