-78.74% is the change from 508 to 108
Calculation steps:
[( 108 - 508 ) ÷ 508] x 100 = -78.74%
Formula
Percentage change = [(108 - 508) / 508] x 100
Subtract the new number by the original number
108 - 508 = -400
-400 ÷ 508 = -0.7874015748031497
-0.7874015748031497 x 100 = -78.74%