-64.62% is the change from 978 to 346
Calculation steps:
[( 346 - 978 ) ÷ 978] x 100 = -64.62%
Formula
Percentage change = [(346 - 978) / 978] x 100
Subtract the new number by the original number
346 - 978 = -632
-632 ÷ 978 = -0.6462167689161554
-0.6462167689161554 x 100 = -64.62%