-68.7% is the change from 623 to 195
Calculation steps:
[( 195 - 623 ) ÷ 623] x 100 = -68.7%
Formula
Percentage change = [(195 - 623) / 623] x 100
Subtract the new number by the original number
195 - 623 = -428
-428 ÷ 623 = -0.6869983948635634
-0.6869983948635634 x 100 = -68.7%