-33.16% is the change from 757 to 506
Calculation steps:
[( 506 - 757 ) ÷ 757] x 100 = -33.16%
Formula
Percentage change = [(506 - 757) / 757] x 100
Subtract the new number by the original number
506 - 757 = -251
-251 ÷ 757 = -0.33157199471598414
-0.33157199471598414 x 100 = -33.16%