41.09% is the change from 421 to 594
Calculation steps:
[( 594 - 421 ) ÷ 421] x 100 = 41.09%
Formula
Percentage change = [(594 - 421) / 421] x 100
Subtract the new number by the original number
594 - 421 = 173
173 ÷ 421 = 0.41092636579572445
0.41092636579572445 x 100 = 41.09%