-15.62% is the change from 634 to 535
Calculation steps:
[( 535 - 634 ) ÷ 634] x 100 = -15.62%
Formula
Percentage change = [(535 - 634) / 634] x 100
Subtract the new number by the original number
535 - 634 = -99
-99 ÷ 634 = -0.15615141955835962
-0.15615141955835962 x 100 = -15.62%