-45.33% is the change from 836 to 457
Calculation steps:
[( 457 - 836 ) ÷ 836] x 100 = -45.33%
Formula
Percentage change = [(457 - 836) / 836] x 100
Subtract the new number by the original number
457 - 836 = -379
-379 ÷ 836 = -0.4533492822966507
-0.4533492822966507 x 100 = -45.33%