Enter borate as zero on both sides, enter your Ph and TA test results on the left side and use the targets based on your selections in the 'suggested goal levels' at the bottom of the chart. That will allow pool math to calculate what is necessary to move your Ph and TA toward the goal, including MA if needed.
I suspect your test results for Ph are lower than your goal, meaning you do not need any MA, as MA is used to lower Ph. Washing soda and soda ash are used to raise Ph.