-57.99% is the change from 507 to 213
Calculation steps:
[( 213 - 507 ) ÷ 507] x 100 = -57.99%
Formula
Percentage change = [(213 - 507) / 507] x 100
Subtract the new number by the original number
213 - 507 = -294
-294 ÷ 507 = -0.5798816568047337
-0.5798816568047337 x 100 = -57.99%