-27.49% is the change from 291 to 211
Calculation steps:
[( 211 - 291 ) ÷ 291] x 100 = -27.49%
Formula
Percentage change = [(211 - 291) / 291] x 100
Subtract the new number by the original number
211 - 291 = -80
-80 ÷ 291 = -0.27491408934707906
-0.27491408934707906 x 100 = -27.49%