-14.62% is the change from 636 to 543
Calculation steps:
[( 543 - 636 ) ÷ 636] x 100 = -14.62%
Formula
Percentage change = [(543 - 636) / 636] x 100
Subtract the new number by the original number
543 - 636 = -93
-93 ÷ 636 = -0.14622641509433962
-0.14622641509433962 x 100 = -14.62%