-83.94% is the change from 492 to 79
Calculation steps:
[( 79 - 492 ) ÷ 492] x 100 = -83.94%
Formula
Percentage change = [(79 - 492) / 492] x 100
Subtract the new number by the original number
79 - 492 = -413
-413 ÷ 492 = -0.8394308943089431
-0.8394308943089431 x 100 = -83.94%