-4.35% is the change from 620 to 593
Calculation steps:
[( 593 - 620 ) ÷ 620] x 100 = -4.35%
Formula
Percentage change = [(593 - 620) / 620] x 100
Subtract the new number by the original number
593 - 620 = -27
-27 ÷ 620 = -0.043548387096774194
-0.043548387096774194 x 100 = -4.35%