-5.16% is the change from 620 to 588
Calculation steps:
[( 588 - 620 ) ÷ 620] x 100 = -5.16%
Formula
Percentage change = [(588 - 620) / 620] x 100
Subtract the new number by the original number
588 - 620 = -32
-32 ÷ 620 = -0.05161290322580645
-0.05161290322580645 x 100 = -5.16%