-78.02% is the change from 678 to 149
Calculation steps:
[( 149 - 678 ) ÷ 678] x 100 = -78.02%
Formula
Percentage change = [(149 - 678) / 678] x 100
Subtract the new number by the original number
149 - 678 = -529
-529 ÷ 678 = -0.7802359882005899
-0.7802359882005899 x 100 = -78.02%