34.44% is the change from 421 to 566
Calculation steps:
[( 566 - 421 ) ÷ 421] x 100 = 34.44%
Formula
Percentage change = [(566 - 421) / 421] x 100
Subtract the new number by the original number
566 - 421 = 145
145 ÷ 421 = 0.34441805225653205
0.34441805225653205 x 100 = 34.44%