cal_formula[count] = {'value': count, 'selected':'', 'text':'倫敦金', 'formula':'(SELL-BUY)*100*7.8*HAND'};count++;
cal_formula[count] = {'value': count, 'selected':'', 'text':'倫敦銀', 'formula':'(SELL-BUY)*5000*7.8*HAND'};count++;
cal_formula[count] = {'value': count, 'selected':'', 'text':'港金', 'formula':'(SELL-BUY)*100*HAND'};count++;
cal_formula[count] = {'value': count, 'selected':'', 'text':'鉑金', 'formula':'(SELL-BUY)*50*7.8*HAND'};count++;
cal_formula[count] = {'value': count, 'selected':'', 'text':'鈀金', 'formula':'(SELL-BUY)*100*7.8*HAND'};count++;