-88.08% is the change from 428 to 51
Calculation steps:
[( 51 - 428 ) ÷ 428] x 100 = -88.08%
Formula
Percentage change = [(51 - 428) / 428] x 100
Subtract the new number by the original number
51 - 428 = -377
-377 ÷ 428 = -0.8808411214953271
-0.8808411214953271 x 100 = -88.08%