-55.65% is the change from 911 to 404
Calculation steps:
[( 404 - 911 ) ÷ 911] x 100 = -55.65%
Formula
Percentage change = [(404 - 911) / 911] x 100
Subtract the new number by the original number
404 - 911 = -507
-507 ÷ 911 = -0.5565312843029637
-0.5565312843029637 x 100 = -55.65%