-16.32% is the change from 631 to 528
Calculation steps:
[( 528 - 631 ) ÷ 631] x 100 = -16.32%
Formula
Percentage change = [(528 - 631) / 631] x 100
Subtract the new number by the original number
528 - 631 = -103
-103 ÷ 631 = -0.16323296354992076
-0.16323296354992076 x 100 = -16.32%