-29.59% is the change from 507 to 357
Calculation steps:
[( 357 - 507 ) ÷ 507] x 100 = -29.59%
Formula
Percentage change = [(357 - 507) / 507] x 100
Subtract the new number by the original number
357 - 507 = -150
-150 ÷ 507 = -0.2958579881656805
-0.2958579881656805 x 100 = -29.59%