-83.04% is the change from 678 to 115
Calculation steps:
[( 115 - 678 ) ÷ 678] x 100 = -83.04%
Formula
Percentage change = [(115 - 678) / 678] x 100
Subtract the new number by the original number
115 - 678 = -563
-563 ÷ 678 = -0.8303834808259587
-0.8303834808259587 x 100 = -83.04%