-39.38% is the change from 706 to 428
Calculation steps:
[( 428 - 706 ) ÷ 706] x 100 = -39.38%
Formula
Percentage change = [(428 - 706) / 706] x 100
Subtract the new number by the original number
428 - 706 = -278
-278 ÷ 706 = -0.3937677053824363
-0.3937677053824363 x 100 = -39.38%