-79.29% is the change from 507 to 105
Calculation steps:
[( 105 - 507 ) ÷ 507] x 100 = -79.29%
Formula
Percentage change = [(105 - 507) / 507] x 100
Subtract the new number by the original number
105 - 507 = -402
-402 ÷ 507 = -0.7928994082840237
-0.7928994082840237 x 100 = -79.29%