-22.29% is the change from 507 to 394
Calculation steps:
[( 394 - 507 ) ÷ 507] x 100 = -22.29%
Formula
Percentage change = [(394 - 507) / 507] x 100
Subtract the new number by the original number
394 - 507 = -113
-113 ÷ 507 = -0.22287968441814596
-0.22287968441814596 x 100 = -22.29%