1. Ascertain the power rating of the appliance, or appliances, for which you want to find the current. Read the label or plate attached to the appliance(s) If more than one appliance
http://www.ehow.com/how_7352578_calculatecurrent...

Sundry debtors+stock in handsundry creditors only ninty days only * 75% = answer. this is the drawing power of a company.
http://wiki.answers.com/Q/How_is_drawing_power_cal...

1. Use the following formulas. I=V/R  This is a formula we learned in high school, that still holds relevance today. Current is equal to voltage divided by resistance. I=P/V  Current
http://www.wikihow.com/CalculateChargingCurrent...

current drawn from where? you can always use an ammeter. Source(s): $$
http://answers.yahoo.com/question/index?qid=200910...
