-42.13% is the change from 591 to 342
Calculation steps:
[( 342 - 591 ) ÷ 591] x 100 = -42.13%
Formula
Percentage change = [(342 - 591) / 591] x 100
Subtract the new number by the original number
342 - 591 = -249
-249 ÷ 591 = -0.4213197969543147
-0.4213197969543147 x 100 = -42.13%