102.38% is the change from 421 to 852
Calculation steps:
[( 852 - 421 ) ÷ 421] x 100 = 102.38%
Formula
Percentage change = [(852 - 421) / 421] x 100
Subtract the new number by the original number
852 - 421 = 431
431 ÷ 421 = 1.0237529691211402
1.0237529691211402 x 100 = 102.38%