-50.46% is the change from 864 to 428
Calculation steps:
[( 428 - 864 ) ÷ 864] x 100 = -50.46%
Formula
Percentage change = [(428 - 864) / 864] x 100
Subtract the new number by the original number
428 - 864 = -436
-436 ÷ 864 = -0.5046296296296297
-0.5046296296296297 x 100 = -50.46%