-14.93% is the change from 643 to 547
Calculation steps:
[( 547 - 643 ) ÷ 643] x 100 = -14.93%
Formula
Percentage change = [(547 - 643) / 643] x 100
Subtract the new number by the original number
547 - 643 = -96
-96 ÷ 643 = -0.14930015552099535
-0.14930015552099535 x 100 = -14.93%