-72.89% is the change from 911 to 247
Calculation steps:
[( 247 - 911 ) ÷ 911] x 100 = -72.89%
Formula
Percentage change = [(247 - 911) / 911] x 100
Subtract the new number by the original number
247 - 911 = -664
-664 ÷ 911 = -0.7288693743139407
-0.7288693743139407 x 100 = -72.89%