-74.05% is the change from 686 to 178
Calculation steps:
[( 178 - 686 ) ÷ 686] x 100 = -74.05%
Formula
Percentage change = [(178 - 686) / 686] x 100
Subtract the new number by the original number
178 - 686 = -508
-508 ÷ 686 = -0.7405247813411079
-0.7405247813411079 x 100 = -74.05%