-27.3% is the change from 846 to 615
Calculation steps:
[( 615 - 846 ) ÷ 846] x 100 = -27.3%
Formula
Percentage change = [(615 - 846) / 846] x 100
Subtract the new number by the original number
615 - 846 = -231
-231 ÷ 846 = -0.2730496453900709
-0.2730496453900709 x 100 = -27.3%