-5.21% is the change from 978 to 927
Calculation steps:
[( 927 - 978 ) ÷ 978] x 100 = -5.21%
Formula
Percentage change = [(927 - 978) / 978] x 100
Subtract the new number by the original number
927 - 978 = -51
-51 ÷ 978 = -0.05214723926380368
-0.05214723926380368 x 100 = -5.21%