SOLUTION: The cost of transistor decreases from Rs.400 to rs.380. What is the percentage of decrease

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Question 523236: The cost of transistor decreases from Rs.400 to rs.380. What is the percentage of decrease
Answer by Maths68(1474) About Me  (Show Source):
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The cost of transistor decreases from Rs.400 to rs.380. What is the percentage of decrease

Percentage decrease =((400-380)/400)*100
Percentage decrease = 20/400 * 100
Percentage decrease = 0.05*100
Percentage decrease = 5%