-52.55% is the change from 491 to 233
Calculation steps:
[( 233 - 491 ) ÷ 491] x 100 = -52.55%
Formula
Percentage change = [(233 - 491) / 491] x 100
Subtract the new number by the original number
233 - 491 = -258
-258 ÷ 491 = -0.5254582484725051
-0.5254582484725051 x 100 = -52.55%