-31.47% is the change from 591 to 405
Calculation steps:
[( 405 - 591 ) ÷ 591] x 100 = -31.47%
Formula
Percentage change = [(405 - 591) / 591] x 100
Subtract the new number by the original number
405 - 591 = -186
-186 ÷ 591 = -0.3147208121827411
-0.3147208121827411 x 100 = -31.47%