-14.62% is the change from 978 to 835
Calculation steps:
[( 835 - 978 ) ÷ 978] x 100 = -14.62%
Formula
Percentage change = [(835 - 978) / 978] x 100
Subtract the new number by the original number
835 - 978 = -143
-143 ÷ 978 = -0.14621676891615543
-0.14621676891615543 x 100 = -14.62%