-84.34% is the change from 632 to 99
Calculation steps:
[( 99 - 632 ) ÷ 632] x 100 = -84.34%
Formula
Percentage change = [(99 - 632) / 632] x 100
Subtract the new number by the original number
99 - 632 = -533
-533 ÷ 632 = -0.8433544303797469
-0.8433544303797469 x 100 = -84.34%