-62.13% is the change from 507 to 192
Calculation steps:
[( 192 - 507 ) ÷ 507] x 100 = -62.13%
Formula
Percentage change = [(192 - 507) / 507] x 100
Subtract the new number by the original number
192 - 507 = -315
-315 ÷ 507 = -0.621301775147929
-0.621301775147929 x 100 = -62.13%