-99.76% is the change from 838 to 2
Calculation steps:
[( 2 - 838 ) ÷ 838] x 100 = -99.76%
Formula
Percentage change = [(2 - 838) / 838] x 100
Subtract the new number by the original number
2 - 838 = -836
-836 ÷ 838 = -0.9976133651551312
-0.9976133651551312 x 100 = -99.76%