weight of criteria

weighted sum value

$\text{Ratio}=\frac{\text{weighted}\text{sum}\text{value}}{\text{weight}\text{of}\text{criteria}}$

$\frac{1}{x}$

$\frac{a}{y}$

$\cdots$

$\frac{b}{z}$

$\frac{\frac{1}{x}+\frac{a}{y}+\cdots +\frac{b}{z}}{n}$

$\frac{1}{x}+\frac{a}{y}+\cdots +\frac{b}{z}$

p

$\frac{c}{x}$

$\frac{1}{y}$

$\cdots$

$\frac{d}{z}$

$\frac{\frac{c}{x}+\frac{1}{y}+\cdots +\frac{d}{z}}{n}$

$\frac{c}{x}+\frac{1}{y}+\cdots +\frac{d}{z}$

q

$⋮$

$⋮$

$⋮$

$⋮$

$⋮$

$\frac{e}{x}$

$\frac{f}{y}$

$\cdots$

$\frac{1}{z}$

$\frac{\frac{e}{x}+\frac{f}{y}+\cdots +\frac{1}{z}}{n}$

$\frac{e}{x}+\frac{f}{y}+\cdots +\frac{1}{z}$

r