-65.24% is the change from 978 to 340
Calculation steps:
[( 340 - 978 ) ÷ 978] x 100 = -65.24%
Formula
Percentage change = [(340 - 978) / 978] x 100
Subtract the new number by the original number
340 - 978 = -638
-638 ÷ 978 = -0.6523517382413088
-0.6523517382413088 x 100 = -65.24%