-1.42% is the change from 636 to 627
Calculation steps:
[( 627 - 636 ) ÷ 636] x 100 = -1.42%
Formula
Percentage change = [(627 - 636) / 636] x 100
Subtract the new number by the original number
627 - 636 = -9
-9 ÷ 636 = -0.014150943396226415
-0.014150943396226415 x 100 = -1.42%