-5.32% is the change from 620 to 587
Calculation steps:
[( 587 - 620 ) ÷ 620] x 100 = -5.32%
Formula
Percentage change = [(587 - 620) / 620] x 100
Subtract the new number by the original number
587 - 620 = -33
-33 ÷ 620 = -0.0532258064516129
-0.0532258064516129 x 100 = -5.32%