-83.44% is the change from 477 to 79
Calculation steps:
[( 79 - 477 ) ÷ 477] x 100 = -83.44%
Formula
Percentage change = [(79 - 477) / 477] x 100
Subtract the new number by the original number
79 - 477 = -398
-398 ÷ 477 = -0.8343815513626834
-0.8343815513626834 x 100 = -83.44%