-96.22% is the change from 291 to 11
Calculation steps:
[( 11 - 291 ) ÷ 291] x 100 = -96.22%
Formula
Percentage change = [(11 - 291) / 291] x 100
Subtract the new number by the original number
11 - 291 = -280
-280 ÷ 291 = -0.9621993127147767
-0.9621993127147767 x 100 = -96.22%