-52.6% is the change from 481 to 228
Calculation steps:
[( 228 - 481 ) ÷ 481] x 100 = -52.6%
Formula
Percentage change = [(228 - 481) / 481] x 100
Subtract the new number by the original number
228 - 481 = -253
-253 ÷ 481 = -0.525987525987526
-0.525987525987526 x 100 = -52.6%