How we can calculate PPC cost?

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PPC Cost will be based on Click Through Rate. CTR=Number of Clicks / Number of Impressions *100

okkk thanks...but we are doing this first time so we don't have any idea about budget..

I calculate PPC amount by my Total Budget and how much click i count.

thanks connect icut...but if we don't have any idea about clicks and impression then what we can do..?

CTR= Click/Impression*100. ...............................

ROI means return of investment.You can check your PPC cost by ROI. You can calculate your ROI=Click/Impression*100.