-16.77% is the change from 620 to 516
Calculation steps:
[( 516 - 620 ) ÷ 620] x 100 = -16.77%
Formula
Percentage change = [(516 - 620) / 620] x 100
Subtract the new number by the original number
516 - 620 = -104
-104 ÷ 620 = -0.16774193548387098
-0.16774193548387098 x 100 = -16.77%