-99.8% is the change from 979 to 2
Calculation steps:
[( 2 - 979 ) ÷ 979] x 100 = -99.8%
Formula
Percentage change = [(2 - 979) / 979] x 100
Subtract the new number by the original number
2 - 979 = -977
-977 ÷ 979 = -0.9979570990806946
-0.9979570990806946 x 100 = -99.8%