how to calculate electricity bills

Do you mean like if I were to leave my 160w light on for 9 hours a day 365 days a year which totals 525,600 divided by 1000 (to get kilowatt hours) is 525.6 times the cost per Kw hour... say 7 cents or .07 means I spend about $36 a year or $3 a month just to light my tank?

Q
 
Nice new Xmas outfit there, Doll. What's in the package? ;)
 
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