How to convert ppm into%?

Ppm (parts per million) is the expression of ratio, which means "parts per million ……", where:1ppm =1*10 (-6).

% means one percent, where:1%=1*10 (-2)?

Ppm (parts per million) is an expression of ratio, which means "parts per million …".

% is a percentage sign, which means: divide a whole into 100 parts on average, and the number of parts occupied by one part, that is, when the denominator of a fraction is 100, can also be written as x/ 100.

Extended data;

Percent sign: a sign (%) indicating that the denominator of a fraction is 100. For example, 32% is 32%, which is equivalent to 0.32 of a decimal. In the computer field, the denominator of the percent sign is the symbol (%) of 100. For example, 32% is 32%, which is equivalent to 0.32 of the decimal. Wildcards are keyboard characters, including asterisks (*) and question marks (? ) and percent sign (%), etc. , you can use it to replace real characters or complete words when you don't know the real characters or don't want to type complete words in network or file search.

The dial indicator is to add a circle on the basis of the dial indicator, which is the dial indicator. Put a circle after the semicolon:? ; And so on,

Reference materials; Baidu encyclopedia-percent sign