-68.23% is the change from 620 to 197
Calculation steps:
[( 197 - 620 ) ÷ 620] x 100 = -68.23%
Formula
Percentage change = [(197 - 620) / 620] x 100
Subtract the new number by the original number
197 - 620 = -423
-423 ÷ 620 = -0.682258064516129
-0.682258064516129 x 100 = -68.23%