-45.02% is the change from 271 to 149
Calculation steps:
[( 149 - 271 ) ÷ 271] x 100 = -45.02%
Formula
Percentage change = [(149 - 271) / 271] x 100
Subtract the new number by the original number
149 - 271 = -122
-122 ÷ 271 = -0.45018450184501846
-0.45018450184501846 x 100 = -45.02%