The price of a mobile phone is decreased by 30% there by its sales is increased by 40%. What is the percentage of change in the turnover for the shopkeeper ?

1. 10% Decrease
2. 2% Decrease
3. 20% Decrease
4. 10% Increase

• 2% decrease
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• option 2.
  
  Let rs 100/mobile sold 10 total income= rs 1000
  now rs 70/mobile sold 14 rs 780
  
  so,change=(20/1000)*100
  
• 10 years agoHelpfull: Yes(1) No(0)
• let price n no. of mobile sale both=100
  so total=100*100=10000
  now there is 30% decrease in price so new price=70
  and 40% increase in sales of mobile so new sales of mobile is=140
  total=140*70=9800
  change %=(1000-9800)*100/10000
  =200*100/10000=2% decrease
  
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• (200/10000)*100
  = 2
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• assume 100 base.
  loss=30% 100 =70
  increase 40% to 100..
  40%70=28
  difference=98-100=2
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