-45.44% is the change from 911 to 497
Calculation steps:
[( 497 - 911 ) ÷ 911] x 100 = -45.44%
Formula
Percentage change = [(497 - 911) / 911] x 100
Subtract the new number by the original number
497 - 911 = -414
-414 ÷ 911 = -0.4544456641053787
-0.4544456641053787 x 100 = -45.44%