-34.62% is the change from 286 to 187
Calculation steps:
[( 187 - 286 ) ÷ 286] x 100 = -34.62%
Formula
Percentage change = [(187 - 286) / 286] x 100
Subtract the new number by the original number
187 - 286 = -99
-99 ÷ 286 = -0.34615384615384615
-0.34615384615384615 x 100 = -34.62%