-58.12% is the change from 991 to 415
Calculation steps:
[( 415 - 991 ) ÷ 991] x 100 = -58.12%
Formula
Percentage change = [(415 - 991) / 991] x 100
Subtract the new number by the original number
415 - 991 = -576
-576 ÷ 991 = -0.5812310797174571
-0.5812310797174571 x 100 = -58.12%