I read price from user input. When i multiply the input with int like this
T=\"$((PRICE*QTY))\"|bc; gives line 272: 12.
\"$((PRICE*QTY))\"|bc
You can use mul=0.8 exp=200 texp=awk -vp=$mul -vq=$exp 'BEGIN{printf "%.2f" ,p * q}'
awk -vp=$mul -vq=$exp 'BEGIN{printf "%.2f" ,p * q}'
Hope this is going to work.