Can someone help me that what does this %2f means in this program below.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Can someone help me that what does this %2f means in this program below. Why is this % sign means and 2f? pie=3.14 radius = float(input('enter radius')) #Take input radius height = float(input('enter slant height '))#take input slant height initial_surface_area=(pie*radius*height)+(pie*radius*radius) # formula to calculate surface area print(" The Surface Area of a Cone is = %.2f " %initial_surface_area)#print surface area new_radius = float(input('enter radius'))#take new input radius new_height = float(input('enter slant height '))#take new input slant height final_surface_area=(pie*new_radius*new_height)+(pie*new_radius*new_radius)# formula to calculate surface area print(" The Surface Area of a new Cone is = %.2f " %final_surface_area)#print surface area percentage_change=((final_surface_area-initial_surface_area)/initial_surface_area)*100#formula to calculate percentage change print(" difference in the Surface Area of a Cone is = %.2f " %percentage_change)#print percenatge change
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