BIAS1:=(C-MA(C,6))/MA(C,6)*100;   
BIAS2:=(C-MA(C,13))/MA(C,13)*100;   
BIAS3:=(C-MA(C,26))/MA(C,26)*100;   
¹ÔÀë1:(BIAS1+2*BIAS2+3*BIAS3)/6;   
¹ÔÀë2:MA(¹ÔÀë1,3);
0;