10% z 800 = 80800 - 80 = 720zl5% z 720 =36720 - 36 = 684zl
800-10%*800-5%[800-10%*800]=800-0,1*800-0,05[800-0,1*800]=800-80-0,05*720=
=800-80-36=684zł
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10% z 800 = 80
800 - 80 = 720zl
5% z 720 =36
720 - 36 = 684zl
800-10%*800-5%[800-10%*800]=800-0,1*800-0,05[800-0,1*800]=800-80-0,05*720=
=800-80-36=684zł