TOTAL S$ [FIELD18*FIELD22]
TOTAL S$ [FIELD21*FIELD28]
TOTAL S$ [FIELD31*FIELD32]
TOTAL
S$ [FIELD36*FIELD37]
TOTAL S$ [FIELD41 * FIELD42]
TOTAL AMOUNT
S$ [FIELD44+FIELD39+FIELD60+FIELD59+FIELD58]