-91.52% is the change from 507 to 43
Calculation steps:
[( 43 - 507 ) ÷ 507] x 100 = -91.52%
Formula
Percentage change = [(43 - 507) / 507] x 100
Subtract the new number by the original number
43 - 507 = -464
-464 ÷ 507 = -0.9151873767258383
-0.9151873767258383 x 100 = -91.52%