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