-67.81% is the change from 320 to 103
Calculation steps:
[( 103 - 320 ) ÷ 320] x 100 = -67.81%
Formula
Percentage change = [(103 - 320) / 320] x 100
Subtract the new number by the original number
103 - 320 = -217
-217 ÷ 320 = -0.678125
-0.678125 x 100 = -67.81%