-65.2% is the change from 227 to 79
Calculation steps:
[( 79 - 227 ) ÷ 227] x 100 = -65.2%
Formula
Percentage change = [(79 - 227) / 227] x 100
Subtract the new number by the original number
79 - 227 = -148
-148 ÷ 227 = -0.6519823788546255
-0.6519823788546255 x 100 = -65.2%