138041
I sure glad that my work doesn't deal with these types of math equations. Most of the time I only have to calculate rates and percentages, stuff that's way easier than trying to figure this stuff out. X is the percentage of V, and of that X%, this is the percentage of W, and this is the percentage of Y, and every once in awhile I'll have to calculate the percentage that just Z makes up. Easy peasy. That, and basic additional and subtraction sometimes.