-28.27% is the change from 428 to 307
Calculation steps:
[( 307 - 428 ) ÷ 428] x 100 = -28.27%
Formula
Percentage change = [(307 - 428) / 428] x 100
Subtract the new number by the original number
307 - 428 = -121
-121 ÷ 428 = -0.2827102803738318
-0.2827102803738318 x 100 = -28.27%