-33.57% is the change from 280 to 186
Calculation steps:
[( 186 - 280 ) ÷ 280] x 100 = -33.57%
Formula
Percentage change = [(186 - 280) / 280] x 100
Subtract the new number by the original number
186 - 280 = -94
-94 ÷ 280 = -0.3357142857142857
-0.3357142857142857 x 100 = -33.57%