-72.9% is the change from 620 to 168
Calculation steps:
[( 168 - 620 ) ÷ 620] x 100 = -72.9%
Formula
Percentage change = [(168 - 620) / 620] x 100
Subtract the new number by the original number
168 - 620 = -452
-452 ÷ 620 = -0.7290322580645161
-0.7290322580645161 x 100 = -72.9%