-97.24% is the change from 978 to 27
Calculation steps:
[( 27 - 978 ) ÷ 978] x 100 = -97.24%
Formula
Percentage change = [(27 - 978) / 978] x 100
Subtract the new number by the original number
27 - 978 = -951
-951 ÷ 978 = -0.9723926380368099
-0.9723926380368099 x 100 = -97.24%