311.4% is the change from 228 to 938
Calculation steps:
[( 938 - 228 ) ÷ 228] x 100 = 311.4%
Formula
Percentage change = [(938 - 228) / 228] x 100
Subtract the new number by the original number
938 - 228 = 710
710 ÷ 228 = 3.1140350877192984
3.1140350877192984 x 100 = 311.4%