Hi there met0555,

note that the "toFixed()" function rounds up the number so that 68. 129 would become 68. 13.

If that is unacceptable, then try this...
Code:

var total_surch = ((A / 100) * P);

var S=total_surch.toString().split('.');

total_surch=parseFloat(S[0]+'.'+S[1].substr(0,2));