-34.42% is the change from 950 to 623
Calculation steps:
[( 623 - 950 ) ÷ 950] x 100 = -34.42%
Formula
Percentage change = [(623 - 950) / 950] x 100
Subtract the new number by the original number
623 - 950 = -327
-327 ÷ 950 = -0.34421052631578947
-0.34421052631578947 x 100 = -34.42%