First Type All Of Your Data Like This Picture. Emp ID, Emp Name,
Basic Salary, Ta, Da, Hra, Pf, Lic, Net Sal.
Then Type The Formula Strating " = " Symbol.
TA = BASIC SAL*PERCENTAGE/100
DA= BASIC SAL*PERCENTAGE/100
HRA= BASIC SAL*PERCENTAGE/100
GROSS SAL = TA + DA + HRA
PF= GROSS SAL*PERCENTAGE/100
NET SAL = GROSS SAL -( PF + LIC)