-63.75% is the change from 320 to 116
Calculation steps:
[( 116 - 320 ) ÷ 320] x 100 = -63.75%
Formula
Percentage change = [(116 - 320) / 320] x 100
Subtract the new number by the original number
116 - 320 = -204
-204 ÷ 320 = -0.6375
-0.6375 x 100 = -63.75%