-47.22% is the change from 828 to 437
Calculation steps:
[( 437 - 828 ) ÷ 828] x 100 = -47.22%
Formula
Percentage change = [(437 - 828) / 828] x 100
Subtract the new number by the original number
437 - 828 = -391
-391 ÷ 828 = -0.4722222222222222
-0.4722222222222222 x 100 = -47.22%