-44.5% is the change from 555 to 308
Calculation steps:
[( 308 - 555 ) ÷ 555] x 100 = -44.5%
Formula
Percentage change = [(308 - 555) / 555] x 100
Subtract the new number by the original number
308 - 555 = -247
-247 ÷ 555 = -0.44504504504504505
-0.44504504504504505 x 100 = -44.5%