-8.2% is the change from 366 to 336
Calculation steps:
[( 336 - 366 ) ÷ 366] x 100 = -8.2%
Formula
Percentage change = [(336 - 366) / 366] x 100
Subtract the new number by the original number
336 - 366 = -30
-30 ÷ 366 = -0.08196721311475409
-0.08196721311475409 x 100 = -8.2%