-30.67% is the change from 913 to 633
Calculation steps:
[( 633 - 913 ) ÷ 913] x 100 = -30.67%
Formula
Percentage change = [(633 - 913) / 913] x 100
Subtract the new number by the original number
633 - 913 = -280
-280 ÷ 913 = -0.3066812705366922
-0.3066812705366922 x 100 = -30.67%