-80.67% is the change from 507 to 98
Calculation steps:
[( 98 - 507 ) ÷ 507] x 100 = -80.67%
Formula
Percentage change = [(98 - 507) / 507] x 100
Subtract the new number by the original number
98 - 507 = -409
-409 ÷ 507 = -0.8067061143984221
-0.8067061143984221 x 100 = -80.67%