-15.79% is the change from 627 to 528
Calculation steps:
[( 528 - 627 ) ÷ 627] x 100 = -15.79%
Formula
Percentage change = [(528 - 627) / 627] x 100
Subtract the new number by the original number
528 - 627 = -99
-99 ÷ 627 = -0.15789473684210525
-0.15789473684210525 x 100 = -15.79%