-25.69% is the change from 545 to 405
Calculation steps:
[( 405 - 545 ) ÷ 545] x 100 = -25.69%
Formula
Percentage change = [(405 - 545) / 545] x 100
Subtract the new number by the original number
405 - 545 = -140
-140 ÷ 545 = -0.25688073394495414
-0.25688073394495414 x 100 = -25.69%