-65.97% is the change from 911 to 310
Calculation steps:
[( 310 - 911 ) ÷ 911] x 100 = -65.97%
Formula
Percentage change = [(310 - 911) / 911] x 100
Subtract the new number by the original number
310 - 911 = -601
-601 ÷ 911 = -0.6597145993413831
-0.6597145993413831 x 100 = -65.97%