-27.11% is the change from 852 to 621
Calculation steps:
[( 621 - 852 ) ÷ 852] x 100 = -27.11%
Formula
Percentage change = [(621 - 852) / 852] x 100
Subtract the new number by the original number
621 - 852 = -231
-231 ÷ 852 = -0.2711267605633803
-0.2711267605633803 x 100 = -27.11%