-15.13% is the change from 337 to 286
Calculation steps:
[( 286 - 337 ) ÷ 337] x 100 = -15.13%
Formula
Percentage change = [(286 - 337) / 337] x 100
Subtract the new number by the original number
286 - 337 = -51
-51 ÷ 337 = -0.1513353115727003
-0.1513353115727003 x 100 = -15.13%