The formula to estimate the floss usage is:
\(FU = \frac{S \times 0.1}{FL}\)
Where:
Example 1:
Calculation:
\(FU = \frac{1000 \times 0.1}{8} = \frac{100}{8} = 12.5 \text{ meters}\)
Example 2:
Calculation:
\(FU = \frac{500 \times 0.1}{8} = \frac{50}{8} = 6.25 \text{ meters}\)