-86.92% is the change from 428 to 56
Calculation steps:
[( 56 - 428 ) ÷ 428] x 100 = -86.92%
Formula
Percentage change = [(56 - 428) / 428] x 100
Subtract the new number by the original number
56 - 428 = -372
-372 ÷ 428 = -0.8691588785046729
-0.8691588785046729 x 100 = -86.92%