-35.32% is the change from 620 to 401
Calculation steps:
[( 401 - 620 ) ÷ 620] x 100 = -35.32%
Formula
Percentage change = [(401 - 620) / 620] x 100
Subtract the new number by the original number
401 - 620 = -219
-219 ÷ 620 = -0.3532258064516129
-0.3532258064516129 x 100 = -35.32%