-98.26% is the change from 634 to 11
Calculation steps:
[( 11 - 634 ) ÷ 634] x 100 = -98.26%
Formula
Percentage change = [(11 - 634) / 634] x 100
Subtract the new number by the original number
11 - 634 = -623
-623 ÷ 634 = -0.9826498422712934
-0.9826498422712934 x 100 = -98.26%