-37.06% is the change from 545 to 343
Calculation steps:
[( 343 - 545 ) ÷ 545] x 100 = -37.06%
Formula
Percentage change = [(343 - 545) / 545] x 100
Subtract the new number by the original number
343 - 545 = -202
-202 ÷ 545 = -0.3706422018348624
-0.3706422018348624 x 100 = -37.06%