-53.47% is the change from 505 to 235
Calculation steps:
[( 235 - 505 ) ÷ 505] x 100 = -53.47%
Formula
Percentage change = [(235 - 505) / 505] x 100
Subtract the new number by the original number
235 - 505 = -270
-270 ÷ 505 = -0.5346534653465347
-0.5346534653465347 x 100 = -53.47%