-79.2% is the change from 971 to 202
Calculation steps:
[( 202 - 971 ) ÷ 971] x 100 = -79.2%
Formula
Percentage change = [(202 - 971) / 971] x 100
Subtract the new number by the original number
202 - 971 = -769
-769 ÷ 971 = -0.791967044284243
-0.791967044284243 x 100 = -79.2%