-10.27% is the change from 477 to 428
Calculation steps:
[( 428 - 477 ) ÷ 477] x 100 = -10.27%
Formula
Percentage change = [(428 - 477) / 477] x 100
Subtract the new number by the original number
428 - 477 = -49
-49 ÷ 477 = -0.10272536687631027
-0.10272536687631027 x 100 = -10.27%