-83.99% is the change from 331 to 53
Calculation steps:
[( 53 - 331 ) ÷ 331] x 100 = -83.99%
Formula
Percentage change = [(53 - 331) / 331] x 100
Subtract the new number by the original number
53 - 331 = -278
-278 ÷ 331 = -0.8398791540785498
-0.8398791540785498 x 100 = -83.99%