-91.99% is the change from 537 to 43
Calculation steps:
[( 43 - 537 ) ÷ 537] x 100 = -91.99%
Formula
Percentage change = [(43 - 537) / 537] x 100
Subtract the new number by the original number
43 - 537 = -494
-494 ÷ 537 = -0.9199255121042831
-0.9199255121042831 x 100 = -91.99%