-30.03% is the change from 766 to 536
Calculation steps:
[( 536 - 766 ) ÷ 766] x 100 = -30.03%
Formula
Percentage change = [(536 - 766) / 766] x 100
Subtract the new number by the original number
536 - 766 = -230
-230 ÷ 766 = -0.3002610966057441
-0.3002610966057441 x 100 = -30.03%