You can now use Percentage as a built-in slot type in your Amazon Lex chatbots. Built-in slot types enable you to easily and quickly define slots in your chatbot to enable accurate resolution of user responses. The AMAZON.Percentage slot type enables resolution to percentage values. You can also now use decimal numbers with the AMAZON.Number slot type. The addition of the AMAZON.Percentage slot type further expands the Amazon Lex built-in slot library total to 97.