-47.64% is the change from 911 to 477
Calculation steps:
[( 477 - 911 ) ÷ 911] x 100 = -47.64%
Formula
Percentage change = [(477 - 911) / 911] x 100
Subtract the new number by the original number
477 - 911 = -434
-434 ÷ 911 = -0.47639956092206365
-0.47639956092206365 x 100 = -47.64%