After calculating valuation ratios price to earnings $($P$/$E$)$ ratio, price to sales $($P$/$S$)$ ratio, and price to book $($P$/$B$)$ ratio for company A$.$ and compare these ratios with industry peers company B$,$ C and D to determine if the stock is undervalued or overvalued.

This is the results:

Company A:

P$/$E $=20\mathrm{.}07$

P$/$S $=2\mathrm{.}78$

P$/$B $=11\mathrm{.}15$

Company B:

P$/$E $=19\mathrm{.}57$

P$/$S $=2\mathrm{.}16$

P$/$B $=7\mathrm{.}05$

Company C:

P$/$E $=66\mathrm{.}48$

P$/$S $=1\mathrm{.}50$

P$/$B $=6\mathrm{.}14$

Company D:

P$/$E $=31\mathrm{.}23$

P$/$S $=3\mathrm{.}51$

P$/$B $=4\mathrm{.}47$

What is that indicate if I want to do stock valuation for company A by using these valuation ratios and mention each ratio whats indicate exactly for company A