-20.33% is the change from 428 to 341
Calculation steps:
[( 341 - 428 ) ÷ 428] x 100 = -20.33%
Formula
Percentage change = [(341 - 428) / 428] x 100
Subtract the new number by the original number
341 - 428 = -87
-87 ÷ 428 = -0.20327102803738317
-0.20327102803738317 x 100 = -20.33%