-21.53% is the change from 353 to 277
Calculation steps:
[( 277 - 353 ) ÷ 353] x 100 = -21.53%
Formula
Percentage change = [(277 - 353) / 353] x 100
Subtract the new number by the original number
277 - 353 = -76
-76 ÷ 353 = -0.21529745042492918
-0.21529745042492918 x 100 = -21.53%