-5.1% is the change from 667 to 633
Calculation steps:
[( 633 - 667 ) ÷ 667] x 100 = -5.1%
Formula
Percentage change = [(633 - 667) / 667] x 100
Subtract the new number by the original number
633 - 667 = -34
-34 ÷ 667 = -0.050974512743628186
-0.050974512743628186 x 100 = -5.1%