-46.03% is the change from 819 to 442
Calculation steps:
[( 442 - 819 ) ÷ 819] x 100 = -46.03%
Formula
Percentage change = [(442 - 819) / 819] x 100
Subtract the new number by the original number
442 - 819 = -377
-377 ÷ 819 = -0.4603174603174603
-0.4603174603174603 x 100 = -46.03%