Two pizza restaurants, Brothers Pizza and Pizza Palace, compete for customers in small village. The typical pizza customer in village purchases pizza from one of these two restaurants once a week. Each and every week some portion of the customers switch from their current pizza restaurant to the competitor. Based on data collected, the probability of a Brothers' customer staying with Brothers for the next week is 70%, and the probability of a Palace customer staying with Palace is 60%. Customers who do not stay with a particular pizza restaurant switch to the other one. Currently, Brothers holds 75% of the pizza market and Palace has the remaining 25% of the customers. What percentage of the pizza market will both hold in 3 weeks?