1.24000-24000X25%=24000-6000=18000 24000X(1-25%)=24000X75%=18000
2.(42+18+14+6)X0.9=80X0.9=72
3.160X(1+15%)=160X1.15=16X11.5=10X11.5+6X11.5=115+69=184
4(120X97.5%+150X98%+200X98%)/(120+150+200)=(117+147+196)/(470)=460/470=97.9%
1.24000-24000X25%=24000-6000=18000 24000X(1-25%)=24000X75%=18000
2.(42+18+14+6)X0.9=80X0.9=72
3.160X(1+15%)=160X1.15=16X11.5=10X11.5+6X11.5=115+69=184
4(120X97.5%+150X98%+200X98%)/(120+150+200)=(117+147+196)/(470)=460/470=97.9%