-71.17% is the change from 274 to 79
Calculation steps:
[( 79 - 274 ) ÷ 274] x 100 = -71.17%
Formula
Percentage change = [(79 - 274) / 274] x 100
Subtract the new number by the original number
79 - 274 = -195
-195 ÷ 274 = -0.7116788321167883
-0.7116788321167883 x 100 = -71.17%