The phrase "a substantial decrease in the amount" is correct and usable in written English.
It can be used when discussing a significant reduction in quantity or volume of something, often in contexts like finance, statistics, or resource management.
Example: "The company reported a substantial decrease in the amount of waste produced over the last year."
Alternatives: "a significant reduction in the quantity" or "a considerable drop in the volume."
Comic Relief's sister event, Sport Relief, which is held in alternate years, also suffered a substantial decrease in the amount of money raised in its most recent outing, with income dipping by £17m.
Though quantitative analysis of the amide I (Table 3) revealed a substantial decrease in the amount of α-helical conformation and an increase in β-sheets and or/extended chains in uremic HSA.
468.siMUC1 show a substantial decrease in the amount of MUC1-CT, while BT.siMUC1 show slightly less knockdown of MUC1-CT.
Rotation of the Factor analysis structure is eventually possible and will not result in a substantial decrease in the amount of variance explained.
"This has, in turn, affected consumer spending and business growth, resulting in a substantial decrease in the UK's GDP.
Consistent with previous observation [10], when Aurora-A was co-expressed with different amounts of Cdh1 in HEK293T cells, the increase in the protein level of Cdh1 was accompanied by a substantial decrease in the expression levels of Aurora-A.
Our results show a substantial decrease in the mortality rate.
Strength gain of RMC samples was accompanied with a substantial decrease in porosity, determined by the amount and morphology of carbonates.
The effect of age on precision in the three-item VWM task amounted to a substantial decrease in SD error between the ages of 7 and 13 years (see Table 2).
But interestingly, the new study found that the most substantial decreases in the amount of sleep teens get took place during the 1990s, which was a pre-Facebook, pre-iPhone era, Keyes said.
"This is a substantial decrease in arms agreements values over 2000, and is the first time since 1997 that total arms agreements decreased from the previous year," Mr. Grimmett wrote.
