-43.14% is the change from 911 to 518
Calculation steps:
[( 518 - 911 ) ÷ 911] x 100 = -43.14%
Formula
Percentage change = [(518 - 911) / 911] x 100
Subtract the new number by the original number
518 - 911 = -393
-393 ÷ 911 = -0.4313940724478595
-0.4313940724478595 x 100 = -43.14%