-36.3% is the change from 978 to 623
Calculation steps:
[( 623 - 978 ) ÷ 978] x 100 = -36.3%
Formula
Percentage change = [(623 - 978) / 978] x 100
Subtract the new number by the original number
623 - 978 = -355
-355 ÷ 978 = -0.36298568507157464
-0.36298568507157464 x 100 = -36.3%