-52.98% is the change from 821 to 386
Calculation steps:
[( 386 - 821 ) ÷ 821] x 100 = -52.98%
Formula
Percentage change = [(386 - 821) / 821] x 100
Subtract the new number by the original number
386 - 821 = -435
-435 ÷ 821 = -0.5298416565164433
-0.5298416565164433 x 100 = -52.98%