-11.77% is the change from 620 to 547
Calculation steps:
[( 547 - 620 ) ÷ 620] x 100 = -11.77%
Formula
Percentage change = [(547 - 620) / 620] x 100
Subtract the new number by the original number
547 - 620 = -73
-73 ÷ 620 = -0.11774193548387096
-0.11774193548387096 x 100 = -11.77%