-48.86% is the change from 837 to 428
Calculation steps:
[( 428 - 837 ) ÷ 837] x 100 = -48.86%
Formula
Percentage change = [(428 - 837) / 837] x 100
Subtract the new number by the original number
428 - 837 = -409
-409 ÷ 837 = -0.4886499402628435
-0.4886499402628435 x 100 = -48.86%