-96.51% is the change from 315 to 11
Calculation steps:
[( 11 - 315 ) ÷ 315] x 100 = -96.51%
Formula
Percentage change = [(11 - 315) / 315] x 100
Subtract the new number by the original number
11 - 315 = -304
-304 ÷ 315 = -0.9650793650793651
-0.9650793650793651 x 100 = -96.51%