-18.29% is the change from 667 to 545
Calculation steps:
[( 545 - 667 ) ÷ 667] x 100 = -18.29%
Formula
Percentage change = [(545 - 667) / 667] x 100
Subtract the new number by the original number
545 - 667 = -122
-122 ÷ 667 = -0.18290854572713644
-0.18290854572713644 x 100 = -18.29%