The phrase "and the amount increased" is correct and usable in written English.
It can be used when discussing a change in quantity or value, typically in financial or statistical contexts.
Example: "After the new policy was implemented, the sales figures were reviewed, and the amount increased significantly."
Alternatives: "and the figure rose" or "and the total grew".
Significant amounts of sodium species were incorporated in the films, and the amount increased with increasing anodizing voltage.
Brönsted acid site was detected on the surface of CrV0.95P0.05O4, and the amount increased by the addition of steam in the reaction mixture, resulting in an enhanced activity for the selective oxidation.
On day 4 the faeces contained a small amount of blood as judged by visual inspection and the amount increased daily.
A moderate navel infection began on day 4. On days 5 and 9, the faeces had a small amount of blood as judged by visual inspection and the amount increased daily beginning on day 11.
It accumulates in the food chain and is therefore more likely to be found in carnivorous fishes, and the amount increases with age and size of the fish [ 24].
Immunoblot analysis of LlBTPC during pollen development demonstrated that LlBTPC accumulation starts after PMI, and the amount increases to the 12 cm flower bud stage, and is sustained at this level until after anthesis.
At a rate of around 3%, a parent would fall foul of this rule on savings of about £3,300, says Bowes, and, as the amount increases over the years it could have a significant impact.
The conversion was raised first and then declined as the enzyme amount increased with an optimum obtained at 0.4 g.
Within 9 days, cells showed colony growth, the granule amount increased, and calcium deposits were observed between cells.
As far as deepening economic and political relations, it's going to be the sheer amount of Americans that go to Cuba, and the amount of increased investment that we see in Cuba.
