-48.67% is the change from 978 to 502
Calculation steps:
[( 502 - 978 ) ÷ 978] x 100 = -48.67%
Formula
Percentage change = [(502 - 978) / 978] x 100
Subtract the new number by the original number
502 - 978 = -476
-476 ÷ 978 = -0.4867075664621677
-0.4867075664621677 x 100 = -48.67%