338.6% is the change from 228 to 1000
Calculation steps:
[( 1000 - 228 ) ÷ 228] x 100 = 338.6%
Formula
Percentage change = [(1000 - 228) / 228] x 100
Subtract the new number by the original number
1000 - 228 = 772
772 ÷ 228 = 3.3859649122807016
3.3859649122807016 x 100 = 338.6%