The amount of ester used will be in {HEAD ~ the range} of from {TAIL ~ about 0.3%} to about 3% 
of from
The amount of ester used will be in { HEAD ~ the range } of from { TAIL ~ about 0.3 % } to about 3 %
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH