-62.92% is the change from 507 to 188
Calculation steps:
[( 188 - 507 ) ÷ 507] x 100 = -62.92%
Formula
Percentage change = [(188 - 507) / 507] x 100
Subtract the new number by the original number
188 - 507 = -319
-319 ÷ 507 = -0.6291913214990138
-0.6291913214990138 x 100 = -62.92%