-21.84% is the change from 911 to 712
Calculation steps:
[( 712 - 911 ) ÷ 911] x 100 = -21.84%
Formula
Percentage change = [(712 - 911) / 911] x 100
Subtract the new number by the original number
712 - 911 = -199
-199 ÷ 911 = -0.21844127332601537
-0.21844127332601537 x 100 = -21.84%