-4.52% is the change from 663 to 633
Calculation steps:
[( 633 - 663 ) ÷ 663] x 100 = -4.52%
Formula
Percentage change = [(633 - 663) / 663] x 100
Subtract the new number by the original number
633 - 663 = -30
-30 ÷ 663 = -0.04524886877828054
-0.04524886877828054 x 100 = -4.52%