Assume a total blackout on pitch day, no light to read your notes, no
light to show charts. Panic NOT. If you have prepared with ‘signposts’
and a ‘visual plot’ you will be able to communicate the content- the
8% -efficiently. Try it.

Still in the dark and you want to add drama, tell them a story!
Storytelling is the most neglected area of pitch stagecraft yet good
stories or anecdotes will stick in the mind long after the charts. They
provoke thought whilst engaging and entertaining the listener, and
they will listen.

Source them from everywhere, personal experience, surprising
customer insights, case histories (more memorable in story form),
history, real life TV, but prepare them in good time not as
afterthoughts.