Morphine was the first single-substance drug to be derived from a plant, in this case from the resin of the opium poppy (Papaver somniferum) by a German pharmacist named Setru â¦ rner, in 1803-1805. It was first sold commercially by Heinrich Merck in the 1820's.
1 To find percentiles outside of this range, use the PERCENTILE.INC function. The syntax on this function is exactly the same as for the PERCENTILE.EXC function.  If you will need this worksheet to run on versions of Excel prior to 2007, use PERCENTILE instead of PERCENTILE.EXC or PERCENTILE.INC.
A percent can always be written as a decimal, and a decimal can be written as a percent, like this: 0.85 = 85%. We can find any percent of a given number by changing the percent to a decimal and multiplying. One hundred percent of a number is just the number itself.Two hundred percent of a number is twice that number.Let's find 30 percent of 400: First change 30% to a decimal by moving the decimal point 2 places to the left.ne hundred percent of a number is just the number itself. Two hundred percent of a number is twice that number. Let's find 30 percent of 400: First change 30% to a decimal by moving the decimal point 2 places to the left.