-41.3% is the change from 920 to 540
Calculation steps:
[( 540 - 920 ) ÷ 920] x 100 = -41.3%
Formula
Percentage change = [(540 - 920) / 920] x 100
Subtract the new number by the original number
540 - 920 = -380
-380 ÷ 920 = -0.41304347826086957
-0.41304347826086957 x 100 = -41.3%