-84.43% is the change from 623 to 97
Calculation steps:
[( 97 - 623 ) ÷ 623] x 100 = -84.43%
Formula
Percentage change = [(97 - 623) / 623] x 100
Subtract the new number by the original number
97 - 623 = -526
-526 ÷ 623 = -0.8443017656500803
-0.8443017656500803 x 100 = -84.43%