231.78% is the change from 129 to 428
Calculation steps:
[( 428 - 129 ) ÷ 129] x 100 = 231.78%
Formula
Percentage change = [(428 - 129) / 129] x 100
Subtract the new number by the original number
428 - 129 = 299
299 ÷ 129 = 2.317829457364341
2.317829457364341 x 100 = 231.78%