-79.93% is the change from 274 to 55
Calculation steps:
[( 55 - 274 ) ÷ 274] x 100 = -79.93%
Formula
Percentage change = [(55 - 274) / 274] x 100
Subtract the new number by the original number
55 - 274 = -219
-219 ÷ 274 = -0.7992700729927007
-0.7992700729927007 x 100 = -79.93%