-87.58% is the change from 612 to 76
Calculation steps:
[( 76 - 612 ) ÷ 612] x 100 = -87.58%
Formula
Percentage change = [(76 - 612) / 612] x 100
Subtract the new number by the original number
76 - 612 = -536
-536 ÷ 612 = -0.8758169934640523
-0.8758169934640523 x 100 = -87.58%