-99.79% is the change from 970 to 2
Calculation steps:
[( 2 - 970 ) ÷ 970] x 100 = -99.79%
Formula
Percentage change = [(2 - 970) / 970] x 100
Subtract the new number by the original number
2 - 970 = -968
-968 ÷ 970 = -0.9979381443298969
-0.9979381443298969 x 100 = -99.79%