-25.42% is the change from 421 to 314
Calculation steps:
[( 314 - 421 ) ÷ 421] x 100 = -25.42%
Formula
Percentage change = [(314 - 421) / 421] x 100
Subtract the new number by the original number
314 - 421 = -107
-107 ÷ 421 = -0.25415676959619954
-0.25415676959619954 x 100 = -25.42%