function calc1(){document.yahookei.Z.value=eval(document.yahookei.X.value)*(document.yahookei.X.value)/(document.yahookei.Y.value)*(document.yahookei.K.value);}
function calc2(){document.googlekei.Z.value=eval((document.googlekei.X.value)*(document.googlekei.Y.value)*(document.googlekei.R.value)/100)-((document.googlekei.V.value)*(document.googlekei.X.value)*0.1);}
function calc3(){document.profit.Z.value=eval((document.profit.X.value)*(document.profit.Y.value)*0.001)-((document.profit.V.value)*(document.profit.X.value)*0.1);}
function calc4(){document.profitppc.Z.value=eval((document.profitppc.X.value)*0.2/(document.profitppc.V.value)*0.01)*(document.profitppc.Y.value);}