-31.85% is the change from 628 to 428
Calculation steps:
[( 428 - 628 ) ÷ 628] x 100 = -31.85%
Formula
Percentage change = [(428 - 628) / 628] x 100
Subtract the new number by the original number
428 - 628 = -200
-200 ÷ 628 = -0.3184713375796178
-0.3184713375796178 x 100 = -31.85%