-56.24% is the change from 665 to 291
Calculation steps:
[( 291 - 665 ) ÷ 665] x 100 = -56.24%
Formula
Percentage change = [(291 - 665) / 665] x 100
Subtract the new number by the original number
291 - 665 = -374
-374 ÷ 665 = -0.562406015037594
-0.562406015037594 x 100 = -56.24%