-74.03% is the change from 620 to 161
Calculation steps:
[( 161 - 620 ) ÷ 620] x 100 = -74.03%
Formula
Percentage change = [(161 - 620) / 620] x 100
Subtract the new number by the original number
161 - 620 = -459
-459 ÷ 620 = -0.7403225806451613
-0.7403225806451613 x 100 = -74.03%