-31.98% is the change from 591 to 402
Calculation steps:
[( 402 - 591 ) ÷ 591] x 100 = -31.98%
Formula
Percentage change = [(402 - 591) / 591] x 100
Subtract the new number by the original number
402 - 591 = -189
-189 ÷ 591 = -0.3197969543147208
-0.3197969543147208 x 100 = -31.98%