After trying to embed various spreadsheets and html stuff for you, I was unsuccessful.
So - here is what you need to do to get your Power Ratings. You can also figure out Distance per Stroke and Power per Stroke
Power Rating = (Weight x Distance) / Time
Distance per Stroke (DPS) = 25 / Stroke Count
Power per Stroke (PPS) = Power Rating / Stroke Count
Make that calculation for each of your pulls on the Power Tower.
Example for Pull 1, below:
Power Rating = 25 x 10 / 17.3 = 14.45
Distance per stroke = 25 / 15 = 1.67 meters
Power per stroke = 14.45 / 15 = .96