-31.45% is the change from 620 to 425
Calculation steps:
[( 425 - 620 ) ÷ 620] x 100 = -31.45%
Formula
Percentage change = [(425 - 620) / 620] x 100
Subtract the new number by the original number
425 - 620 = -195
-195 ÷ 620 = -0.31451612903225806
-0.31451612903225806 x 100 = -31.45%