-13.39% is the change from 620 to 537
Calculation steps:
[( 537 - 620 ) ÷ 620] x 100 = -13.39%
Formula
Percentage change = [(537 - 620) / 620] x 100
Subtract the new number by the original number
537 - 620 = -83
-83 ÷ 620 = -0.1338709677419355
-0.1338709677419355 x 100 = -13.39%