-7.55% is the change from 543 to 502
Calculation steps:
[( 502 - 543 ) ÷ 543] x 100 = -7.55%
Formula
Percentage change = [(502 - 543) / 543] x 100
Subtract the new number by the original number
502 - 543 = -41
-41 ÷ 543 = -0.07550644567219153
-0.07550644567219153 x 100 = -7.55%