-64.61% is the change from 308 to 109
Calculation steps:
[( 109 - 308 ) ÷ 308] x 100 = -64.61%
Formula
Percentage change = [(109 - 308) / 308] x 100
Subtract the new number by the original number
109 - 308 = -199
-199 ÷ 308 = -0.6461038961038961
-0.6461038961038961 x 100 = -64.61%