увеличьте:425 на 4% уменьшите:80 на 25%
425*1.04=442
80*0.75=60
425 - 100%
х - 4%
х= 425*4/100=17
425*17=7225
80 - 100%
х - 25%
х=80*25/100=20
80/20=4
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425*1.04=442
80*0.75=60
425 - 100%
х - 4%
х= 425*4/100=17
425*17=7225
80 - 100%
х - 25%
х=80*25/100=20
80/20=4