-45.45% is the change from 836 to 456
Calculation steps:
[( 456 - 836 ) ÷ 836] x 100 = -45.45%
Formula
Percentage change = [(456 - 836) / 836] x 100
Subtract the new number by the original number
456 - 836 = -380
-380 ÷ 836 = -0.45454545454545453
-0.45454545454545453 x 100 = -45.45%