-58.73% is the change from 664 to 274
Calculation steps:
[( 274 - 664 ) ÷ 664] x 100 = -58.73%
Formula
Percentage change = [(274 - 664) / 664] x 100
Subtract the new number by the original number
274 - 664 = -390
-390 ÷ 664 = -0.5873493975903614
-0.5873493975903614 x 100 = -58.73%