-38% is the change from 421 to 261
Calculation steps:
[( 261 - 421 ) ÷ 421] x 100 = -38%
Formula
Percentage change = [(261 - 421) / 421] x 100
Subtract the new number by the original number
261 - 421 = -160
-160 ÷ 421 = -0.38004750593824227
-0.38004750593824227 x 100 = -38%