-30.3% is the change from 911 to 635
Calculation steps:
[( 635 - 911 ) ÷ 911] x 100 = -30.3%
Formula
Percentage change = [(635 - 911) / 911] x 100
Subtract the new number by the original number
635 - 911 = -276
-276 ÷ 911 = -0.3029637760702525
-0.3029637760702525 x 100 = -30.3%