Excuse me next, ceramic tile specification is 80 × 80 floor tile, the price is 50 yuan a piece of brick, excuse me a square how much money. How to calculate, write a formula, thank you

Excuse me next, ceramic tile specification is 80 × 80 floor tile, the price is 50 yuan a piece of brick, excuse me a square how much money. How to calculate, write a formula, thank you

Calculation method: unit price divided by the area of a tile = yuan / M & #
That is: 50 ÷ (0.8 × 0.8) = 78.125 yuan / m2