-9.22% is the change from 683 to 620
Calculation steps:
[( 620 - 683 ) ÷ 683] x 100 = -9.22%
Formula
Percentage change = [(620 - 683) / 683] x 100
Subtract the new number by the original number
620 - 683 = -63
-63 ÷ 683 = -0.09224011713030747
-0.09224011713030747 x 100 = -9.22%