-69.76% is the change from 506 to 153
Calculation steps:
[( 153 - 506 ) ÷ 506] x 100 = -69.76%
Formula
Percentage change = [(153 - 506) / 506] x 100
Subtract the new number by the original number
153 - 506 = -353
-353 ÷ 506 = -0.6976284584980237
-0.6976284584980237 x 100 = -69.76%