-98.97% is the change from 970 to 10
Calculation steps:
[( 10 - 970 ) ÷ 970] x 100 = -98.97%
Formula
Percentage change = [(10 - 970) / 970] x 100
Subtract the new number by the original number
10 - 970 = -960
-960 ÷ 970 = -0.9896907216494846
-0.9896907216494846 x 100 = -98.97%