-14.98% is the change from 641 to 545
Calculation steps:
[( 545 - 641 ) ÷ 641] x 100 = -14.98%
Formula
Percentage change = [(545 - 641) / 641] x 100
Subtract the new number by the original number
545 - 641 = -96
-96 ÷ 641 = -0.1497659906396256
-0.1497659906396256 x 100 = -14.98%