-29.01% is the change from 593 to 421
Calculation steps:
[( 421 - 593 ) ÷ 593] x 100 = -29.01%
Formula
Percentage change = [(421 - 593) / 593] x 100
Subtract the new number by the original number
421 - 593 = -172
-172 ÷ 593 = -0.2900505902192243
-0.2900505902192243 x 100 = -29.01%