-78.43% is the change from 978 to 211
Calculation steps:
[( 211 - 978 ) ÷ 978] x 100 = -78.43%
Formula
Percentage change = [(211 - 978) / 978] x 100
Subtract the new number by the original number
211 - 978 = -767
-767 ÷ 978 = -0.7842535787321063
-0.7842535787321063 x 100 = -78.43%