-47.2% is the change from 911 to 481
Calculation steps:
[( 481 - 911 ) ÷ 911] x 100 = -47.2%
Formula
Percentage change = [(481 - 911) / 911] x 100
Subtract the new number by the original number
481 - 911 = -430
-430 ÷ 911 = -0.47200878155872666
-0.47200878155872666 x 100 = -47.2%