-14.31% is the change from 978 to 838
Calculation steps:
[( 838 - 978 ) ÷ 978] x 100 = -14.31%
Formula
Percentage change = [(838 - 978) / 978] x 100
Subtract the new number by the original number
838 - 978 = -140
-140 ÷ 978 = -0.14314928425357873
-0.14314928425357873 x 100 = -14.31%