-93.46% is the change from 978 to 64
Calculation steps:
[( 64 - 978 ) ÷ 978] x 100 = -93.46%
Formula
Percentage change = [(64 - 978) / 978] x 100
Subtract the new number by the original number
64 - 978 = -914
-914 ÷ 978 = -0.934560327198364
-0.934560327198364 x 100 = -93.46%