-83.31% is the change from 623 to 104
Calculation steps:
[( 104 - 623 ) ÷ 623] x 100 = -83.31%
Formula
Percentage change = [(104 - 623) / 623] x 100
Subtract the new number by the original number
104 - 623 = -519
-519 ÷ 623 = -0.8330658105939005
-0.8330658105939005 x 100 = -83.31%