-44.9% is the change from 911 to 502
Calculation steps:
[( 502 - 911 ) ÷ 911] x 100 = -44.9%
Formula
Percentage change = [(502 - 911) / 911] x 100
Subtract the new number by the original number
502 - 911 = -409
-409 ÷ 911 = -0.4489571899012075
-0.4489571899012075 x 100 = -44.9%