-17.25% is the change from 545 to 451
Calculation steps:
[( 451 - 545 ) ÷ 545] x 100 = -17.25%
Formula
Percentage change = [(451 - 545) / 545] x 100
Subtract the new number by the original number
451 - 545 = -94
-94 ÷ 545 = -0.1724770642201835
-0.1724770642201835 x 100 = -17.25%