-52.4% is the change from 208 to 99
Calculation steps:
[( 99 - 208 ) ÷ 208] x 100 = -52.4%
Formula
Percentage change = [(99 - 208) / 208] x 100
Subtract the new number by the original number
99 - 208 = -109
-109 ÷ 208 = -0.5240384615384616
-0.5240384615384616 x 100 = -52.4%