The  percentage of Ag in AgCl  is approximately ____?

Percentage of silver in AgCl is calculated by dividing molar mass of Ag from molar mass of AgCl and then multiplied by 100.

$$\begin{gathered} \mathrm{\%} \mathrm{of} \mathrm{Ag} \mathrm{from} \mathrm{AgCl}=\frac{\mathrm{molar} \mathrm{mass} \mathrm{of} \mathrm{Ag}}{\mathrm{molar} \mathrm{mass} \mathrm{of} \mathrm{AgCl}}\times 100 \\ =\frac{108}{143.5}\times 100=75.26 \end{gathered}$$