-30.7% is the change from 899 to 623
Calculation steps:
[( 623 - 899 ) ÷ 899] x 100 = -30.7%
Formula
Percentage change = [(623 - 899) / 899] x 100
Subtract the new number by the original number
623 - 899 = -276
-276 ÷ 899 = -0.30700778642936594
-0.30700778642936594 x 100 = -30.7%