-40.12% is the change from 486 to 291
Calculation steps:
[( 291 - 486 ) ÷ 486] x 100 = -40.12%
Formula
Percentage change = [(291 - 486) / 486] x 100
Subtract the new number by the original number
291 - 486 = -195
-195 ÷ 486 = -0.4012345679012346
-0.4012345679012346 x 100 = -40.12%