-83.99% is the change from 606 to 97
Calculation steps:
[( 97 - 606 ) ÷ 606] x 100 = -83.99%
Formula
Percentage change = [(97 - 606) / 606] x 100
Subtract the new number by the original number
97 - 606 = -509
-509 ÷ 606 = -0.8399339933993399
-0.8399339933993399 x 100 = -83.99%