-30.08% is the change from 891 to 623
Calculation steps:
[( 623 - 891 ) ÷ 891] x 100 = -30.08%
Formula
Percentage change = [(623 - 891) / 891] x 100
Subtract the new number by the original number
623 - 891 = -268
-268 ÷ 891 = -0.30078563411896747
-0.30078563411896747 x 100 = -30.08%