Question

the cost of a transistors decreases from rupees 400 to rupees 380 what is the percentage of decrease​

Answer 1

Step-by-step explanation:

decrease in cost=400-380

=20 rs

percentage decrease= decrease*100/original cost

=20*100/400

=5%

Answer 2

Answer:

5 percent

Step-by-step explanation:

decrease percent =[ (final price - original price) / original price ] x 100

so according to formula ,

decrease percent = {(380 -400)/400} x 100

= -5 percent

- here means decrease

so answer is → 5 percent