-15.15% is the change from 363 to 308
Calculation steps:
[( 308 - 363 ) ÷ 363] x 100 = -15.15%
Formula
Percentage change = [(308 - 363) / 363] x 100
Subtract the new number by the original number
308 - 363 = -55
-55 ÷ 363 = -0.15151515151515152
-0.15151515151515152 x 100 = -15.15%