Question

find the gain or loss percent when.1) cp=620 amd sp=. 7132) cp= 345 and sp= 76.80

Answer 1

Since CP<SP
It is a gain
Gain = 713-620 = 93
Gain % = (Gain×100)÷CP
              = (93×100) ÷620
              = 9300÷620
              = 15%