-91.61% is the change from 620 to 52
Calculation steps:
[( 52 - 620 ) ÷ 620] x 100 = -91.61%
Formula
Percentage change = [(52 - 620) / 620] x 100
Subtract the new number by the original number
52 - 620 = -568
-568 ÷ 620 = -0.9161290322580645
-0.9161290322580645 x 100 = -91.61%