-17.05% is the change from 657 to 545
Calculation steps:
[( 545 - 657 ) ÷ 657] x 100 = -17.05%
Formula
Percentage change = [(545 - 657) / 657] x 100
Subtract the new number by the original number
545 - 657 = -112
-112 ÷ 657 = -0.1704718417047184
-0.1704718417047184 x 100 = -17.05%