Find the gain or loss per cent when :
(i) C.P =Rs. 620 and S.P =Rs. 713
(ii) C.P =Rs. 675 and S.P =Rs. 630
(iii) C.P =Rs. 345 and S.P =Rs. 372.60
(iv) C.P =Rs. 80 and S.P =Rs. 76.80
Find the S.P when C.P =1000, loss = 21/4%
Statement1: Profit is defined as the positive difference between selling price(S.P) and cost price(C.P) when ( S.P > C.P).
Statement 2: Loss is found when (C.P > S.P)