-15.92% is the change from 628 to 528
Calculation steps:
[( 528 - 628 ) ÷ 628] x 100 = -15.92%
Formula
Percentage change = [(528 - 628) / 628] x 100
Subtract the new number by the original number
528 - 628 = -100
-100 ÷ 628 = -0.1592356687898089
-0.1592356687898089 x 100 = -15.92%