-31.32% is the change from 613 to 421
Calculation steps:
[( 421 - 613 ) ÷ 613] x 100 = -31.32%
Formula
Percentage change = [(421 - 613) / 613] x 100
Subtract the new number by the original number
421 - 613 = -192
-192 ÷ 613 = -0.3132137030995106
-0.3132137030995106 x 100 = -31.32%