-63.06% is the change from 268 to 99
Calculation steps:
[( 99 - 268 ) ÷ 268] x 100 = -63.06%
Formula
Percentage change = [(99 - 268) / 268] x 100
Subtract the new number by the original number
99 - 268 = -169
-169 ÷ 268 = -0.6305970149253731
-0.6305970149253731 x 100 = -63.06%