4. A cellphone store pays P25.00 for a screen protector to its supplier. The percent of markup is 20%. What is the cost of the screen protector? 1. Understand the a. What is asked in the problem? problem situation. b. What are the given facts? 2. Plan what to do. c. What is the formula to use? 3. Carry out the d. Solution plan. e. What is the final answer?