-66.98% is the change from 315 to 104
Calculation steps:
[( 104 - 315 ) ÷ 315] x 100 = -66.98%
Formula
Percentage change = [(104 - 315) / 315] x 100
Subtract the new number by the original number
104 - 315 = -211
-211 ÷ 315 = -0.6698412698412698
-0.6698412698412698 x 100 = -66.98%