-91.43% is the change from 525 to 45
Calculation steps:
[( 45 - 525 ) ÷ 525] x 100 = -91.43%
Formula
Percentage change = [(45 - 525) / 525] x 100
Subtract the new number by the original number
45 - 525 = -480
-480 ÷ 525 = -0.9142857142857143
-0.9142857142857143 x 100 = -91.43%