-42.71% is the change from 597 to 342
Calculation steps:
[( 342 - 597 ) ÷ 597] x 100 = -42.71%
Formula
Percentage change = [(342 - 597) / 597] x 100
Subtract the new number by the original number
342 - 597 = -255
-255 ÷ 597 = -0.4271356783919598
-0.4271356783919598 x 100 = -42.71%