-51.09% is the change from 274 to 134
Calculation steps:
[( 134 - 274 ) ÷ 274] x 100 = -51.09%
Formula
Percentage change = [(134 - 274) / 274] x 100
Subtract the new number by the original number
134 - 274 = -140
-140 ÷ 274 = -0.5109489051094891
-0.5109489051094891 x 100 = -51.09%