-69.07% is the change from 291 to 90
Calculation steps:
[( 90 - 291 ) ÷ 291] x 100 = -69.07%
Formula
Percentage change = [(90 - 291) / 291] x 100
Subtract the new number by the original number
90 - 291 = -201
-201 ÷ 291 = -0.6907216494845361
-0.6907216494845361 x 100 = -69.07%