-83.53% is the change from 607 to 100
Calculation steps:
[( 100 - 607 ) ÷ 607] x 100 = -83.53%
Formula
Percentage change = [(100 - 607) / 607] x 100
Subtract the new number by the original number
100 - 607 = -507
-507 ÷ 607 = -0.8352553542009885
-0.8352553542009885 x 100 = -83.53%