Conversion between dry density and wet density of soil? In the compaction test of upper soil in JTG e40-2007, dry density = wet density / (1 + 0.01 * moisture content), while in textbooks and other materials, dry density = wet density / (1 + moisture content), moisture content is a percentage, but the denominator of the two formulas is very different. Why?

Conversion between dry density and wet density of soil? In the compaction test of upper soil in JTG e40-2007, dry density = wet density / (1 + 0.01 * moisture content), while in textbooks and other materials, dry density = wet density / (1 + moisture content), moisture content is a percentage, but the denominator of the two formulas is very different. Why?

In fact, the two formulas are the same
Only when the "moisture content" in the two formulas is substituted into the data, the "moisture content" in the formula of "dry density = wet density / (1 + 0.01 * moisture content)" should be expressed as a percentage, while the "moisture content" in the formula of "dry density = wet density / (1 + moisture content)" should be expressed as a fraction