-78.48% is the change from 971 to 209
Calculation steps:
[( 209 - 971 ) ÷ 971] x 100 = -78.48%
Formula
Percentage change = [(209 - 971) / 971] x 100
Subtract the new number by the original number
209 - 971 = -762
-762 ÷ 971 = -0.7847579814624099
-0.7847579814624099 x 100 = -78.48%