-36.7% is the change from 545 to 345
Calculation steps:
[( 345 - 545 ) ÷ 545] x 100 = -36.7%
Formula
Percentage change = [(345 - 545) / 545] x 100
Subtract the new number by the original number
345 - 545 = -200
-200 ÷ 545 = -0.3669724770642202
-0.3669724770642202 x 100 = -36.7%