-60.97% is the change from 807 to 315
Calculation steps:
[( 315 - 807 ) ÷ 807] x 100 = -60.97%
Formula
Percentage change = [(315 - 807) / 807] x 100
Subtract the new number by the original number
315 - 807 = -492
-492 ÷ 807 = -0.6096654275092936
-0.6096654275092936 x 100 = -60.97%