-79.4% is the change from 971 to 200
Calculation steps:
[( 200 - 971 ) ÷ 971] x 100 = -79.4%
Formula
Percentage change = [(200 - 971) / 971] x 100
Subtract the new number by the original number
200 - 971 = -771
-771 ÷ 971 = -0.7940267765190525
-0.7940267765190525 x 100 = -79.4%