-68.88% is the change from 421 to 131
Calculation steps:
[( 131 - 421 ) ÷ 421] x 100 = -68.88%
Formula
Percentage change = [(131 - 421) / 421] x 100
Subtract the new number by the original number
131 - 421 = -290
-290 ÷ 421 = -0.6888361045130641
-0.6888361045130641 x 100 = -68.88%