300% is the change from 228 to 912
Calculation steps:
[( 912 - 228 ) ÷ 228] x 100 = 300%
Formula
Percentage change = [(912 - 228) / 228] x 100
Subtract the new number by the original number
912 - 228 = 684
684 ÷ 228 = 3
3 x 100 = 300%
Example