-77.05% is the change from 501 to 115
Calculation steps:
[( 115 - 501 ) ÷ 501] x 100 = -77.05%
Formula
Percentage change = [(115 - 501) / 501] x 100
Subtract the new number by the original number
115 - 501 = -386
-386 ÷ 501 = -0.7704590818363274
-0.7704590818363274 x 100 = -77.05%