-83.37% is the change from 475 to 79
Calculation steps:
[( 79 - 475 ) ÷ 475] x 100 = -83.37%
Formula
Percentage change = [(79 - 475) / 475] x 100
Subtract the new number by the original number
79 - 475 = -396
-396 ÷ 475 = -0.8336842105263158
-0.8336842105263158 x 100 = -83.37%