find volatilily ,thanks

60 days =(5 day*4 week)*3months

=20 day*3months =60 days

since not work in weekend

Historical volatility Se na & (uu)? - ? S - si u = ln Siti bo obsevate (3 months = 72 ) By taking stock reading (the closing Price ). to fined volatility CITY CEMENT 3 months V 25 24 23 22 21 20 19 26 12 28 13 30 16 Net Change -1.10 % Change -4.51 Last Price 23.30 Historical volatility Se na & (uu)? - ? S - si u = ln Siti bo obsevate (3 months = 72 ) By taking stock reading (the closing Price ). to fined volatility CITY CEMENT 3 months V 25 24 23 22 21 20 19 26 12 28 13 30 16 Net Change -1.10 % Change -4.51 Last Price 23.30