-61.29% is the change from 806 to 312
Calculation steps:
[( 312 - 806 ) ÷ 806] x 100 = -61.29%
Formula
Percentage change = [(312 - 806) / 806] x 100
Subtract the new number by the original number
312 - 806 = -494
-494 ÷ 806 = -0.6129032258064516
-0.6129032258064516 x 100 = -61.29%