Easy Machanical System (EA) needs to be done fast

Hello, I am looking to automate a very easy mechanical trading strategy, it should have a few inputs that should be able to be changed. 
It needs to be able to calculate the risk given of a percentage of account balance and Stop Loss size. 

The strategy is based around monthly and weekly levels and closes inside or outside of them entries will be given of that. 
It should be simple.