You increase your weight for weeks 2 and 3 by 5% each week, but decrease your reps each week. In week #4 you go back to doing the same weight you used in week #2, but you will do 8 reps instead of 7.
Your 1RM% should say "NA" on your workout cards for weeks 2,3, and 4. We only use your 1RM% for the first week only on the workout cards, but then use a formula to calculate your weight increase of 5% for weeks 2 and 3.
There is a slight difference between increasing your weight by 5% and increasing your 1RM by 5%. Though in speaking we will use the two methods interchangeably, in the workout cards we only use the formula for "increasing your weight".