Show your villain personally doing something despicable. Have the villain do something awful to something or someone we care about. Make sure your villain has a believable motive or agenda. Avoid bargain bin Nazis. Don't have your villain talk like a cheeseball. Be careful with those smirks.
A simple moving average is customizable in that it can be calculated for a different number of time periods, simply by adding the closing price of the security for a number of time periods and then dividing this total by the number of time periods, which gives the average price of the security over the time period.
Notice that the moving average also rises from 13 to 15 over a three day calculation period. Also notice that each moving average value is just below the last price. For example, the moving average for day one equals 13 and the last price is 15.