Price reduction

The product is sold for 360 CZK and the sales profit is 30%. By what percentage the sales profit will be reduced if I reduce the price of the product by 10%?

Correct result:

p =  43.3 %

Solution:

 360=x 1.30  1.3x=360  x=360013276.923077  z1=360x=360276.9231=10801383.0769  c2=360 (110/100)=324 kc  z2=c2x=324276.9231=6121347.0769 Kc  p=100 z1z2z1=100 83.076947.076983.0769=1303=43.3%



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