You should label your axes properly. You haven't defined 'price change' and 'gap' anywhere in the text, so we have to try to deduce the meaning from context. I'

You should label your axes properly. You haven't defined 'price change' and 'gap' anywhere in the text, so we have to try to deduce the meaning from context. I'm still not sure if the units are percentage change or thousands of GBP.