-26.45% is the change from 620 to 456
Calculation steps:
[( 456 - 620 ) ÷ 620] x 100 = -26.45%
Formula
Percentage change = [(456 - 620) / 620] x 100
Subtract the new number by the original number
456 - 620 = -164
-164 ÷ 620 = -0.2645161290322581
-0.2645161290322581 x 100 = -26.45%