-19.82% is the change from 545 to 437
Calculation steps:
[( 437 - 545 ) ÷ 545] x 100 = -19.82%
Formula
Percentage change = [(437 - 545) / 545] x 100
Subtract the new number by the original number
437 - 545 = -108
-108 ÷ 545 = -0.1981651376146789
-0.1981651376146789 x 100 = -19.82%