635.48% is the change from 31 to 228
Calculation steps:
[( 228 - 31 ) ÷ 31] x 100 = 635.48%
Formula
Percentage change = [(228 - 31) / 31] x 100
Subtract the new number by the original number
228 - 31 = 197
197 ÷ 31 = 6.354838709677419
6.354838709677419 x 100 = 635.48%