-36.45% is the change from 620 to 394
Calculation steps:
[( 394 - 620 ) ÷ 620] x 100 = -36.45%
Formula
Percentage change = [(394 - 620) / 620] x 100
Subtract the new number by the original number
394 - 620 = -226
-226 ÷ 620 = -0.36451612903225805
-0.36451612903225805 x 100 = -36.45%