70%-15%-(1.1/10%)*8%*(1-x)=00.7-0.15-11x0.08(1-x)=00.55-0.88+0.88x=00.88x=0.33x=33/88x=3/8x=0.375
70%-15%-(1.1/10%)*8%*(1-x)=00.7-0.15-11x0.8(1-x)=00.55-8.8+8.8x=08.8x=8.25x=15/16