59.29% is the change from 420 to 669
Calculation steps:
[( 669 - 420 ) ÷ 420] x 100 = 59.29%
Formula
Percentage change = [(669 - 420) / 420] x 100
Subtract the new number by the original number
669 - 420 = 249
249 ÷ 420 = 0.5928571428571429
0.5928571428571429 x 100 = 59.29%