Question

when sp= 928 and gain percent = 16% find cp

Answer 1

cp=100xsp/100+gain percent
cp=100x928/116
cp=800

Answer 2

Let CP be x.
As gain percent=16%
Gain = 16% of x.
= 16x/100
=4x/25
Now, SP = CP + Gain
= x + 4x/25
=29x/25
But it is given that SP=928,
thus 29x/25 = 928
=> x = 928×25/29
=> x = 800 [Answer]
Short Formula:
CP=SP×(100)/(100+P%)
=928×100/116
=8×100
=800
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