A number is first increased by 20% and then decreased by 15%. Find the net increase or
decrease. Does it make any difference if it is 15% decreased first and then 20% increased?
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1) 20-15-(20×15)/100
= 5 - 300/100= 5-3= 2 %
2) -15+20-(20×15)/100
= 5 - 3 = 2 %
same same
= 5 - 300/100= 5-3= 2 %
2) -15+20-(20×15)/100
= 5 - 3 = 2 %
same same
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