Formula in deltaV

=ALS(D5>13,03;0;ALS(D5>10;1/3*PI()*(13,031-D5)*((((13,031-D5)/2,845+0,925)^2)+0,925^2+((13,031-D5)/2,845+0,925)*0,925)+0,444+0,572;1/4*PI()*3,98^2*(10-D5)+21,1+0,444+0,572))*$C$4*1000

I've tried to get this formula from excel into DeltaV calc, but the answer is not the same as in excel. Can sombody explain me how to interpeted this formula into deltaV