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Percentage calculation

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# 1  
Old 04-11-2013
Percentage calculation
i am trying to get percentage : but not able to do it:

i tried :
x=1
y=2
z=`expr $x/$y*100`

it is not giving me result

can u pls help on this
# 2  
Old 04-11-2013
try multiplying by 100 first:
Code:
z=$((100*$x/$y))

or alternatively use bc:
Code:
z=$(echo "scale=2 ; ($x/$y*100)" | bc)

# 3  
Old 04-11-2013
i tried it :
Code:
z=$(echo "scale=4 ; ($x/$y*100)" | bc)

bt it is giving result : 33.3300
x=1
y=3

i want 33.33
Last edited by Franklin52; 04-11-2013 at 09:11 AM.. Reason: Please use code tags for data and code samples
# 4  
Old 04-11-2013
Quote:
Originally Posted by Aditya.Gurgaon
i tried it :
z=$(echo "scale=4 ; ($x/$y*100)" | bc)

bt it is giving result : 33.3300
x=1
y=3

i want 33.33
That's because you set scale to '4' which is the number of digits right of the decimal point... So leave scale to '2' and it should work.
# 5  
Old 04-11-2013
it is coming 33.00

i need 33.33

how i will do it ?
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