83.41% is the change from 229 to 420
Calculation steps:
[( 420 - 229 ) ÷ 229] x 100 = 83.41%
Formula
Percentage change = [(420 - 229) / 229] x 100
Subtract the new number by the original number
420 - 229 = 191
191 ÷ 229 = 0.834061135371179
0.834061135371179 x 100 = 83.41%