-50.48% is the change from 836 to 414
Calculation steps:
[( 414 - 836 ) ÷ 836] x 100 = -50.48%
Formula
Percentage change = [(414 - 836) / 836] x 100
Subtract the new number by the original number
414 - 836 = -422
-422 ÷ 836 = -0.5047846889952153
-0.5047846889952153 x 100 = -50.48%