Starkist, Frito-Lay, P&G, Nestl, Kimberly-Clark, Georgia-Pacific, and many other consumer product marketers have reduced the amount they put in a package but charge the same price.Or, they reduce the content within a package but maintain the same package size, dimensions, and prices.

The issue raised is whether the practice of reducing the contents of packages without changing the package size or price is deceptive and therefore unethical if manufacturers do not inform consumers of the change.Consumer advocates believe it is; manufacturers do not. What is your thought and position on this issue?

https://www.thestar.com/business/2015/02/17/small-size-big-business-why-companies-are-shrinking-product-sizes.html