285.52% is the change from 221 to 852
Calculation steps:
[( 852 - 221 ) ÷ 221] x 100 = 285.52%
Formula
Percentage change = [(852 - 221) / 221] x 100
Subtract the new number by the original number
852 - 221 = 631
631 ÷ 221 = 2.8552036199095023
2.8552036199095023 x 100 = 285.52%