log b â¡ ( x y ) = log b â¡ ( x y â 1 ) = log b â¡ ( x ) + log b â¡ ( y â 1 ) = log b â¡ ( x ) â log b â¡ ( y ) {\displaystyle \log _{b}{\bigg (}{\frac {x}{y}}{\bigg )}=\log _{b}(xy^{-1})=\log _{b}(x)+\log _{b}(y^{-1})=\log _{b}(x)-\log _{b}(y)}.
If you wanted an 800 grit polish, which is still very reflective, there arenât as many steps, so the price is decreased. Polished concrete, in general, can range anywhere from $2.00 per square foot to $7.00 per square foot. Glossy Floors, before giving an estimate, takes the time to examine the floor very carefully.
Video on the cost of concrete floors. Depending on the level of complexity, concrete floors can cost as little as $2 to $6 a square foot or be as expensive as $15 to $30 a square foot. Extensive surface preparation, such as grinding, crack repair, and spall repair, can add as much as $2 per square foot to the overall cost of the floor. 2  If a full resurfacing is needed, expect to tack on another $2 to $3 per square foot (for a $4 to $5 per square foot increase).