-29.09% is the change from 636 to 451
Calculation steps:
[( 451 - 636 ) ÷ 636] x 100 = -29.09%
Formula
Percentage change = [(451 - 636) / 636] x 100
Subtract the new number by the original number
451 - 636 = -185
-185 ÷ 636 = -0.2908805031446541
-0.2908805031446541 x 100 = -29.09%