Answer:Here's how to solve the problem: 1. Find the original price: - Since the price increased by Php 1,000.00 to reach Php 13,000.00, the original price was Php 13,000.00 - Php 1,000.00 = Php 12,000.00 2. Calculate the percentage increase: - Percentage increase = (Increase in price / Original price) x 100%- Percentage increase = (Php 1,000.00 / Php 12,000.00) x 100%- Percentage increase = 0.0833 x 100%- Percentage increase = 8.33% Therefore, the percentage increase in the price of the smartphone is 8.33%.