-63.5% is the change from 622 to 227
Calculation steps:
[( 227 - 622 ) ÷ 622] x 100 = -63.5%
Formula
Percentage change = [(227 - 622) / 622] x 100
Subtract the new number by the original number
227 - 622 = -395
-395 ÷ 622 = -0.635048231511254
-0.635048231511254 x 100 = -63.5%